diff --git a/CHANGELOG b/CHANGELOG
index 6ae7d64..d3e34c8 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -1,3 +1,8 @@
+-------------------------------------------------------------------------------
+Work in Progress 0.9 [07.04.2020]
+
+	Mods update
+
 -------------------------------------------------------------------------------
 Work in Progress 0.8.1 [07.04.2020]
 
diff --git a/mod_sources.txt b/mod_sources.txt
index 36fd8c1..64e1b69 100644
--- a/mod_sources.txt
+++ b/mod_sources.txt
@@ -77,7 +77,7 @@ origin	https://notabug.org/tenplus1/farming (fetch)
 Mod: flora/farming
 
 origin	https://github.com/minetest-mods/i3.git (fetch)
-* main e910c20 [origin/main] Code cleaning
+* main 3db6bbe [origin/main] UI improvements
 Mod: gui/i3
 
 origin	https://repo.or.cz/minetest_hbarmor.git (fetch)
@@ -113,7 +113,7 @@ origin	https://github.com/TheTermos/mobkit (fetch)
 Mod: lib_api/mobkit
 
 origin	https://notabug.org/tenplus1/mobs_redo (fetch)
-* master 34b06df [origin/master] add ability to follow group: items
+* master c06d071 [origin/master] allow players with 'protection_bypass' to rename owned tamed mobs
 Mod: lib_api/mobs_redo
 
 origin	https://github.com/appgurueu/modlib (fetch)
@@ -149,7 +149,7 @@ origin	https://codeberg.org/Hamlet/mobs_ghost_redo (fetch)
 Mod: mobs/mobs_mobs/mobs_ghost_redo
 
 origin	https://notabug.org/TenPlus1/mobs_monster.git (fetch)
-* master 095d875 [origin/master] add Tree Creeper
+* master e39d06b [origin/master] add fire damage to obsidian flan
 Mod: mobs/mobs_mobs/mobs_monster
 
 origin	https://github.com/berengma/aerotest (fetch)
diff --git a/mods/gui/i3/README.md b/mods/gui/i3/README.md
index 58273d7..2d67feb 100644
--- a/mods/gui/i3/README.md
+++ b/mods/gui/i3/README.md
@@ -17,6 +17,7 @@ This mod requires **Minetest 5.4+**
    - 3D Player Model Preview
    - Inventory Sorting (alphabetical + item stack compression)
    - Item Bookmarks
+   - Waypoints
 
 **¹** *This mode is a Terraria-like system that shows recipes you can craft from items you ever had in your inventory.
 To enable it: `i3_progressive_mode = true` in `minetest.conf`.*
diff --git a/mods/gui/i3/init.lua b/mods/gui/i3/init.lua
index 4b12e35..90fbd1c 100644
--- a/mods/gui/i3/init.lua
+++ b/mods/gui/i3/init.lua
@@ -58,15 +58,16 @@ local ES = function(...)
 	return ESC(S(...))
 end
 
-local maxn, sort, concat, copy, insert, remove =
+local maxn, sort, concat, copy, insert, remove, indexof =
 	table.maxn, table.sort, table.concat, table.copy,
-	table.insert, table.remove
+	table.insert, table.remove, table.indexof
 
 local sprintf, find, gmatch, match, sub, split, upper, lower =
 	string.format, string.find, string.gmatch, string.match,
 	string.sub, string.split, string.upper, string.lower
 
-local min, max, floor, ceil, abs = math.min, math.max, math.floor, math.ceil, math.abs
+local min, max, floor, ceil, random =
+	math.min, math.max, math.floor, math.ceil, math.random
 
 local pairs, ipairs, next, type, setmetatable, tonum, unpack, select =
 	pairs, ipairs, next, type, setmetatable, tonumber, unpack, select
@@ -88,7 +89,7 @@ local HUD_TIMER_MAX = 1.5
 
 local MIN_FORMSPEC_VERSION = 4
 
-local META_SAVES = {"bag_size", "skin_id"}
+local META_SAVES = {"bag_size", "waypoints"}
 
 local BAG_SIZES = {
 	small  = INV_SIZE + 3,
@@ -96,6 +97,14 @@ local BAG_SIZES = {
 	large  = INV_SIZE + 9,
 }
 
+local SUBCAT = {
+	"bag",
+	"armor",
+	"skins",
+	"awards",
+	"waypoints",
+}
+
 local PNG = {
 	bg = "i3_bg.png",
 	bg_full = "i3_bg_full.png",
@@ -122,6 +131,13 @@ local PNG = {
 	tab = "i3_tab.png",
 	tab_top = "i3_tab.png^\\[transformFY",
 	furnace_anim = "i3_furnace_anim.png",
+	bag = "i3_bag.png",
+	armor = "i3_armor.png",
+	awards = "i3_award.png",
+	skins = "i3_skin.png",
+	waypoints = "i3_waypoint.png",
+	teleport = "i3_teleport.png",
+	add = "i3_add.png",
 
 	cancel_hover = "i3_cancel.png^\\[brighten",
 	search_hover = "i3_search.png^\\[brighten",
@@ -134,6 +150,13 @@ local PNG = {
 	next_hover = "i3_next_hover.png",
 	tab_hover = "i3_tab_hover.png",
 	tab_hover_top = "i3_tab_hover.png^\\[transformFY",
+	bag_hover = "i3_bag_hover.png",
+	armor_hover = "i3_armor_hover.png",
+	awards_hover = "i3_award_hover.png",
+	skins_hover = "i3_skin_hover.png",
+	waypoints_hover = "i3_waypoint_hover.png",
+	teleport_hover = "i3_teleport.png^\\[brighten",
+	add_hover = "i3_add.png^\\[brighten",
 }
 
 local fs_elements = {
@@ -153,11 +176,11 @@ local fs_elements = {
 }
 
 local styles = sprintf([[
+	style_type[field;border=false;bgcolor=transparent]
 	style_type[label,field;font_size=16]
 	style_type[image_button;border=false;sound=i3_click]
 	style_type[item_image_button;border=false;bgimg_hovered=%s;sound=i3_click]
 
-	style[filter;border=false]
 	style[cancel;fgimg=%s;fgimg_hovered=%s;content_offset=0]
 	style[search;fgimg=%s;fgimg_hovered=%s;content_offset=0]
 	style[prev_page;fgimg=%s;fgimg_hovered=%s]
@@ -166,6 +189,9 @@ local styles = sprintf([[
 	style[next_recipe;fgimg=%s;fgimg_hovered=%s]
 	style[prev_usage;fgimg=%s;fgimg_hovered=%s]
 	style[next_usage;fgimg=%s;fgimg_hovered=%s]
+	style[waypoint_add;fgimg=%s;fgimg_hovered=%s;content_offset=0]
+	style[waypoint_delete;fgimg=%s;fgimg_hovered=%s;content_offset=0]
+	style[waypoint_teleport;fgimg=%s;fgimg_hovered=%s;content_offset=0]
 	style[pagenum,no_item,no_rcp;border=false;font=bold;font_size=18;content_offset=0]
 	style[btn_bag,btn_armor,btn_skins;font=bold;font_size=18;border=false;content_offset=0;sound=i3_click]
 	style[craft_rcp,craft_usg;border=false;noclip=true;font_size=16;sound=i3_craft;
@@ -180,7 +206,10 @@ PNG.next,     PNG.next_hover,
 PNG.prev,     PNG.prev_hover,
 PNG.next,     PNG.next_hover,
 PNG.prev,     PNG.prev_hover,
-PNG.next,     PNG.next_hover)
+PNG.next,     PNG.next_hover,
+PNG.add,      PNG.add_hover,
+PNG.trash,    PNG.trash_hover,
+PNG.teleport, PNG.teleport_hover)
 
 local function get_lang_code(info)
 	return info and info.lang_code
@@ -639,24 +668,24 @@ local function get_desc(item)
 
 	local def = reg_items[item]
 
-	if def then
-		local desc = ItemStack(item):get_short_description()
-
-		if true_str(desc) then
-			desc = desc:trim()
-
-			if not find(desc, "%u") then
-				desc = toupper(desc)
-			end
-
-			return desc
-
-		elseif true_str(item) then
-			return toupper(match(item, ":(.*)"))
-		end
+	if not def then
+		return S("Unknown Item (@1)", item)
 	end
 
-	return S("Unknown Item (@1)", item)
+	local desc = def.description
+
+	if true_str(desc) then
+		desc = desc:trim():match("[^\n]*"):gsub("_", " ")
+
+		if not find(desc, "%u") then
+			desc = toupper(desc)
+		end
+
+		return desc
+
+	elseif true_str(item) then
+		return toupper(match(item, ":(.*)"))
+	end
 end
 
 local function item_has_groups(item_groups, groups)
@@ -1147,7 +1176,7 @@ local function craft_stack(player, pname, data, craft_rcp)
 	local inv = player:get_inventory()
 	local rcp_usg = craft_rcp and "recipe" or "usage"
 	local output = craft_rcp and data.recipes[data.rnum].output or data.usages[data.unum].output
-	output = ItemStack(output)
+	      output = ItemStack(output)
 	local stackname, stackcount, stackmax = output:get_name(), output:get_count(), output:get_stack_max()
 	local scrbar_val = data[fmt("scrbar_%s", craft_rcp and "rcp" or "usg")] or 1
 
@@ -1373,7 +1402,7 @@ local function get_output_fs(fs, data, rcp, is_recipe, shapeless, right, btn_siz
 		fs("animated_image", X + 0.05, Y, ITEM_BTN_SIZE, ITEM_BTN_SIZE, PNG.fire_anim, 8, 180)
 	else
 		local item = rcp.output
-		item = ItemStack(clean_name(item))
+		      item = ItemStack(clean_name(item))
 		local name = item:get_name()
 		local count = item:get_count()
 		local bt_s = ITEM_BTN_SIZE * 1.2
@@ -1530,21 +1559,20 @@ local function get_rcp_lbl(fs, data, panel, rn, is_recipe)
 		lbl = ES("Recipe @1 of @2", data.rnum, rn)
 	end
 
-	local _lbl = translate(data.lang_code, lbl)
-	local lbl_len = #_lbl:gsub("[\128-\191]", "") -- Count chars, not bytes in UTF-8 strings
-	local shift = min(0.9, abs(12 - max(12, lbl_len)) * 0.15)
+	local one = rn == 1
+	local y = data.yoffset + 3.3
 
-	fs("label", data.xoffset + 5.65 - shift, data.yoffset + 3.37, lbl)
+	fs("hypertext", data.xoffset + (one and 4.7 or 3.95), y, 3, 0.6, "",
+		fmt("<global size=16><right>%s</right>", lbl))
 
-	if rn > 1 then
+	if not one then
 		local btn_suffix = is_recipe and "recipe" or "usage"
 		local prev_name = fmt("prev_%s", btn_suffix)
 		local next_name = fmt("next_%s", btn_suffix)
-		local x_arrow = data.xoffset + 5.09
-		local y_arrow = data.yoffset + 3.2
+		local size = 0.3
 
-		fs("image_button", x_arrow - shift, y_arrow, 0.3, 0.3, "", prev_name, "")
-		fs("image_button", x_arrow + 2.3,   y_arrow, 0.3, 0.3, "", next_name, "")
+		fs("image_button", data.xoffset + 7.05, y, size, size, "", prev_name, "")
+		fs("image_button", data.xoffset + 7.5,  y, size, size, "", next_name, "")
 	end
 
 	local rcp = is_recipe and panel.rcp[data.rnum] or panel.rcp[data.unum]
@@ -1617,7 +1645,7 @@ local function get_header(fs, data)
 		fs(fmt("tooltip[nofav;%s]", ES"Cannot mark this item. Bookmark limit reached."))
 	end
 
-	local desc_lim, name_lim = 32, 34
+	local desc_lim, name_lim = 33, 34
 	local desc = translate(data.lang_code, get_desc(data.query_item))
 	      desc = ESC(desc)
 	local tech_name = data.query_item
@@ -1635,7 +1663,7 @@ local function get_header(fs, data)
 		tech_name = snip(tech_name, name_lim)
 	end
 
-	fs("style_type[label;font=bold;font_size=22]")
+	fs("style_type[label;font=bold;font_size=20]")
 	fs("label", X, Y1, desc)
 	fs("style_type[label;font=mono;font_size=16]")
 	fs("label", X, Y2, clr("#7bf", tech_name))
@@ -1873,24 +1901,28 @@ local function get_ctn_content(fs, data, player, yoffset, ctn_len, award_list, a
 		fs("image", 4.45, yoffset + 3.75, 1, 1, PNG.trash)
 	end
 
-	local yextra = 5.4
-	local bag_equip = data.equip == "bag"
-	local armor_equip = data.equip == "armor"
-	local skins_equip = data.equip == "skins"
+	local yextra = 5.5
 
-	fs(fmt("style[btn_bag;textcolor=%s]", bag_equip and "#fff" or "#aaa"),
-	   fmt("style[btn_armor;textcolor=%s]", armor_equip and "#fff" or "#aaa"),
-	   fmt("style[btn_skins;textcolor=%s]", skins_equip and "#fff" or "#aaa"),
-	   "style_type[button:hovered;textcolor=#fff]")
-	fs("button", -0.14, yextra - 0.2, 2, 0.6, "btn_bag", ES"Bag")
-	fs("button", 1.87, yextra - 0.2, 2, 0.6, "btn_armor", ES"Armor")
-	fs("button", 3.87, yextra - 0.2, 2, 0.6, "btn_skins", ES"Skins")
+	for i, title in ipairs(SUBCAT) do
+		local btn_name = fmt("btn_%s", title)
 
-	fs("box", 0, yextra + 0.4, ctn_len, 0.045, "#bababa50")
-	fs("box", (bag_equip and 0) or (armor_equip and 2) or (skins_equip and 4),
-		yextra + 0.4, 1.7, 0.045, "#f9826c")
+		fs(fmt("style[btn_%s;fgimg=%s;fgimg_hovered=%s;content_offset=0]", title,
+			data.subcat == i and PNG[fmt("%s_hover", title)] or PNG[title],
+			PNG[fmt("%s_hover", title)]))
 
-	if bag_equip then
+		fs("image_button", 0.25 + ((i - 1) * 1.18), yextra - 0.2, 0.5, 0.5, "", btn_name, "")
+		fs(fmt("tooltip[%s;%s]", btn_name, title:gsub("^%l", upper)))
+	end
+
+	fs("box", 0, yextra + 0.45, ctn_len, 0.045, "#bababa50")
+	fs("box", (data.subcat - 1) * 1.18, yextra + 0.45, 1, 0.045, "#f9826c")
+
+	local function not_installed(modname)
+		fs("hypertext", 0, yextra + 0.9, ctn_len, 0.6, "",
+			fmt("<center><style color=#7bf font=mono>%s</style> not installed</center>", modname))
+	end
+
+	if data.subcat == 1 then
 		fs(fmt("list[detached:%s_backpack;main;0,%f;1,1;]", ESC(name), yextra + 0.7))
 
 		if not data.bag:get_stack("main", 1):is_empty() then
@@ -1898,7 +1930,7 @@ local function get_ctn_content(fs, data, player, yoffset, ctn_len, award_list, a
 				ES("The inventory is extended by @1 slots", BAG_SIZES[data.bag_size] - INV_SIZE))
 		end
 
-	elseif armor_equip then
+	elseif data.subcat == 2 then
 		if __3darmor then
 			fs(fmt("list[detached:%s_armor;armor;0,%f;3,2;]", ESC(name), yextra + 0.7))
 
@@ -1907,11 +1939,10 @@ local function get_ctn_content(fs, data, player, yoffset, ctn_len, award_list, a
 			fs("label", 3.65, yextra + 1.55, fmt("%s: %s", ES"Level", armor_def.level))
 			fs("label", 3.65, yextra + 2.05, fmt("%s: %s", ES"Heal", armor_def.heal))
 		else
-			fs("hypertext", 0, yextra + 0.9, ctn_len, 0.6, "",
-				"<center><style color=#7bf font=mono>3d_armor</style> not installed</center>")
+			not_installed("3d_armor")
 		end
 
-	elseif skins_equip then
+	elseif data.subcat == 3 then
 		if __skinsdb then
 			local _skins = skins.get_skinlist_for_player(name)
 			local sks = {}
@@ -1924,21 +1955,46 @@ local function get_ctn_content(fs, data, player, yoffset, ctn_len, award_list, a
 
 			fs(fmt("dropdown[0,%f;4,0.6;skins;%s;%u;true]", yextra + 0.7, sks, data.skin_id or 1))
 		else
-			fs("hypertext", 0, yextra + 0.9, ctn_len, 0.6, "",
-				"<center><style color=#7bf font=mono>skinsdb</style> not installed</center>")
-		end
-	end
-
-	if __awards then
-		if bag_equip then
-			yextra = yextra + 2.2
-		elseif armor_equip then
-			yextra = yextra + (__3darmor and 3.4 or 1.7)
-		elseif skins_equip then
-			yextra = yextra + 1.7
+			not_installed("skinsdb")
 		end
 
-		get_award_list(data, fs, ctn_len, yextra, award_list, awards_unlocked, award_list_nb)
+	elseif data.subcat == 4 then
+		if __awards then
+			yextra = yextra + 0.8
+			get_award_list(data, fs, ctn_len, yextra, award_list, awards_unlocked, award_list_nb)
+		else
+			not_installed("awards")
+		end
+
+	elseif data.subcat == 5 then
+		local waypoints = {}
+
+		for _, v in ipairs(data.waypoints or {}) do
+			insert(waypoints, v.name)
+		end
+
+		fs(fmt("dropdown[0,%f;4.2,0.6;waypoints;%s;%u;true]",
+			yextra + 0.7, concat(waypoints, ","), data.waypoint_id))
+
+		local no_waypoint = not data.waypoints or #data.waypoints == 0
+
+		if not no_waypoint then
+			fs("image_button", 4.4, yextra + 0.75, 0.5, 0.5, "", "waypoint_delete", "")
+			fs(fmt("tooltip[waypoint_delete;%s]", ES"Delete waypoint"))
+
+			if core.is_creative_enabled(name) then
+				fs("image_button",
+					no_waypoint and 4.4 or 5.1, yextra + 0.77, 0.5, 0.5,
+					"", "waypoint_teleport", "")
+
+				fs(fmt("tooltip[waypoint_teleport;%s]", ES"Teleport to waypoint"))
+			end
+		end
+
+		fs(fmt("box[0,%f;4.2,0.6;#bababa25]", yextra + 1.5))
+		fs(fmt("field[0.1,%f;4.1,0.6;waypoint_name;;]", yextra + 1.5))
+		fs("image_button", 4.4, yextra + 1.55, 0.5, 0.5, "", "waypoint_add", "")
+		fs(fmt("tooltip[waypoint_add;%s]", ES"Add waypoint"))
 	end
 end
 
@@ -1977,8 +2033,7 @@ local function get_tabs_fs(player, data, fs, full_height)
 		local Y = btm and full_height or -tab_hgh
 
 		fs("style_type[image_button:hovered;textcolor=#fff]")
-		fs("image_button", X, Y, tab_len, tab_hgh, "", fmt("tab_%s", def.name),
-			ESC(def.description))
+		fs("image_button", X, Y, tab_len, tab_hgh, "", fmt("tab_%s", def.name), ESC(def.description))
 
 		if def.image and def.image ~= "" then
 			local desc = translate(data.lang_code, def.description)
@@ -2154,17 +2209,17 @@ local function init_data(player, info)
 		favs          = {},
 		export_counts = {},
 		current_tab   = 1,
-		equip         = "bag",
+		subcat        = 1,
+		waypoint_id   = 1,
 		lang_code     = get_lang_code(info),
 	}
 
 	local data = pdata[name]
 	local meta = player:get_meta()
 
-	data.bag_size = dslz(meta:get_string "bag_size")
-
-	if __skinsdb then
-		data.skin_id = tonum(dslz(meta:get_string "skin_id") or 1)
+	for i = 1, #META_SAVES do
+		local recover = META_SAVES[i]
+		data[recover] = dslz(meta:get_string(recover))
 	end
 
 	after(0, set_fs, player)
@@ -2296,18 +2351,16 @@ local function get_inventory_fs(player, data, fs)
 
 	local award_list, award_list_nb
 	local awards_unlocked = 0
+	local max_val = 15
 
-	local max_val = 13
-
-	if __3darmor and data.equip == "armor" then
-		if data.scrbar_inv == max_val then
-			data.scrbar_inv = data.scrbar_inv + 9
+	if __3darmor and data.subcat == 2 then
+		if (data.scrbar_inv or 0) >= max_val then
+			data.scrbar_inv = data.scrbar_inv + 10
 		end
 
-		max_val = max_val + 9
-	end
+		max_val = max_val + 10
 
-	if __awards then
+	elseif __awards and data.subcat == 4 then
 		award_list = awards.get_award_states(name)
 		award_list_nb = #award_list
 
@@ -2319,7 +2372,10 @@ local function get_inventory_fs(player, data, fs)
 			end
 		end
 
-		max_val = max_val + (award_list_nb * 13.17)
+		max_val = max_val + (award_list_nb * 13)
+
+	elseif data.subcat == 5 then
+		max_val = max_val + 3
 	end
 
 	fs(fmt([[
@@ -2418,16 +2474,21 @@ i3.new_tab {
 			skins.set_player_skin(player, _skins[data.skin_id])
 		end
 
+		if fields.waypoints then
+			data.waypoint_id = tonumber(fields.waypoints)
+		end
+
+		for field in pairs(fields) do
+			if sub(field, 1, 4) == "btn_" then
+				data.subcat = indexof(SUBCAT, sub(field, 5))
+				break
+			end
+		end
+
 		if fields.trash then
 			local inv = player:get_inventory()
-
-			if not inv:is_empty("main") then
-				inv:set_list("main", {})
-			end
-
-			if not inv:is_empty("craft") then
-				inv:set_list("craft", {})
-			end
+			inv:set_list("main", {})
+			inv:set_list("craft", {})
 
 		elseif fields.compress then
 			compress_items(player)
@@ -2439,13 +2500,43 @@ i3.new_tab {
 			data.scrbar_inv = tonum(match(sb_inv, "%d+"))
 			return
 
-		elseif fields.btn_bag or fields.btn_armor or fields.btn_skins then
-			for k in pairs(fields) do
-				if sub(k, 1, 4) == "btn_" then
-					data.equip = sub(k, 5)
-					break
-				end
+		elseif fields.waypoint_add then
+			data.waypoints = data.waypoints or {}
+			local waypoint = fields.waypoint_name
+			local last = #data.waypoints + 1
+			data.waypoint_id = last
+
+			if fields.waypoint_name == "" then
+				waypoint = fmt("Waypoint %u", last)
 			end
+
+			local color = random(0xffffff)
+			local pos = player:get_pos()
+
+			local id = player:hud_add {
+				hud_elem_type = "waypoint",
+				name = waypoint,
+				text = " m",
+				world_pos = pos,
+				number = color,
+				z_index = -300,
+			}
+
+			insert(data.waypoints, {name = waypoint, pos = pos, color = color, id = id})
+
+		elseif fields.waypoint_delete then
+			local waypoint = data.waypoints[data.waypoint_id]
+			player:hud_remove(waypoint.id)
+			remove(data.waypoints, data.waypoint_id)
+			data.waypoint_id = data.waypoint_id + (data.waypoint_id == 1 and 0 or -1)
+
+		elseif fields.waypoint_teleport then
+			local waypoint = data.waypoints[data.waypoint_id]
+			local pos = waypoint.pos
+			pos.y = pos.y + 0.5
+
+			player:set_pos(pos)
+			msg(name, fmt("Teleported to %s", clr("#ff0", waypoint.name)))
 		end
 
 		return set_fs(player)
@@ -2790,6 +2881,24 @@ local function init_backpack(player)
 	end
 end
 
+local function init_waypoints(player)
+	local name = player:get_player_name()
+	local data = pdata[name]
+
+	for _, v in ipairs(data.waypoints or {}) do
+		local id = player:hud_add {
+			hud_elem_type = "waypoint",
+			name = v.name,
+			text = " m",
+			world_pos = v.pos,
+			number = v.color,
+			z_index = -300,
+		}
+
+		v.id = id
+	end
+end
+
 on_joinplayer(function(player)
 	local name = player:get_player_name()
 	local info = get_player_info(name)
@@ -2812,6 +2921,7 @@ on_joinplayer(function(player)
 
 	init_data(player, info)
 	init_backpack(player)
+	init_waypoints(player)
 
 	after(0, function()
 		player:hud_set_hotbar_itemcount(HOTBAR_COUNT)
@@ -2972,7 +3082,7 @@ if progressive_mode then
 
 	local function init_hud(player, data)
 		data.hud = {
-			bg = player:hud_add{
+			bg = player:hud_add {
 				hud_elem_type = "image",
 				position      = {x = 0.78, y = 1},
 				alignment     = {x = 1,    y = 1},
@@ -2981,7 +3091,7 @@ if progressive_mode then
 				z_index       = 0xDEAD,
 			},
 
-			book = player:hud_add{
+			book = player:hud_add {
 				hud_elem_type = "image",
 				position      = {x = 0.79, y = 1.02},
 				alignment     = {x = 1,    y = 1},
@@ -2990,7 +3100,7 @@ if progressive_mode then
 				z_index       = 0xDEAD,
 			},
 
-			text = player:hud_add{
+			text = player:hud_add {
 				hud_elem_type = "text",
 				position      = {x = 0.84, y = 1.04},
 				alignment     = {x = 1,    y = 1},
diff --git a/mods/gui/i3/init.lua.orig b/mods/gui/i3/init.lua.orig
new file mode 100644
index 0000000..3bb0605
--- /dev/null
+++ b/mods/gui/i3/init.lua.orig
@@ -0,0 +1,3251 @@
+i3 = {}
+
+-- Caches
+local pdata         = {}
+local init_items    = {}
+local searches      = {}
+local recipes_cache = {}
+local usages_cache  = {}
+local fuel_cache    = {}
+local replacements  = {fuel = {}}
+local toolrepair
+
+local tabs = {}
+
+local progressive_mode = core.settings:get_bool "i3_progressive_mode"
+local damage_enabled = core.settings:get_bool "enable_damage"
+
+local __3darmor, __skinsdb, __awards
+local sfinv, unified_inventory, old_unified_inventory_fn
+
+local http = core.request_http_api()
+local singleplayer = core.is_singleplayer()
+
+local reg_items = core.registered_items
+local reg_nodes = core.registered_nodes
+local reg_craftitems = core.registered_craftitems
+local reg_tools = core.registered_tools
+local reg_entities = core.registered_entities
+local reg_aliases = core.registered_aliases
+
+local log = core.log
+local after = core.after
+local clr = core.colorize
+local parse_json = core.parse_json
+local write_json = core.write_json
+
+local chat_send = core.chat_send_player
+local show_formspec = core.show_formspec
+local check_privs = core.check_player_privs
+local globalstep = core.register_globalstep
+local on_shutdown = core.register_on_shutdown
+local get_players = core.get_connected_players
+local get_craft_result = core.get_craft_result
+local translate = minetest.get_translated_string
+local on_joinplayer = core.register_on_joinplayer
+local get_all_recipes = core.get_all_craft_recipes
+local slz, dslz = core.serialize, core.deserialize
+local on_mods_loaded = core.register_on_mods_loaded
+local on_leaveplayer = core.register_on_leaveplayer
+local get_player_info = core.get_player_information
+local create_inventory = core.create_detached_inventory
+local on_receive_fields = core.register_on_player_receive_fields
+
+local ESC = core.formspec_escape
+local S = core.get_translator "i3"
+
+local ES = function(...)
+	return ESC(S(...))
+end
+
+local maxn, sort, concat, copy, insert, remove, indexof =
+	table.maxn, table.sort, table.concat, table.copy,
+	table.insert, table.remove, table.indexof
+
+local sprintf, find, gmatch, match, sub, split, upper, lower =
+	string.format, string.find, string.gmatch, string.match,
+	string.sub, string.split, string.upper, string.lower
+
+local min, max, floor, ceil, random =
+	math.min, math.max, math.floor, math.ceil, math.random
+
+local pairs, ipairs, next, type, setmetatable, tonum, unpack, select =
+	pairs, ipairs, next, type, setmetatable, tonumber, unpack, select
+
+local vec_add, vec_mul = vector.add, vector.multiply
+
+local ROWS = 9
+local LINES = 10
+local IPP = ROWS * LINES
+local MAX_FAVS = 6
+local ITEM_BTN_SIZE = 1.1
+
+local INV_SIZE = 36
+local HOTBAR_COUNT = 9
+
+-- Progressive mode
+local POLL_FREQ = 0.25
+local HUD_TIMER_MAX = 1.5
+
+local MIN_FORMSPEC_VERSION = 4
+
+local META_SAVES = {"bag_size", "waypoints"}
+
+local BAG_SIZES = {
+	small  = INV_SIZE + 3,
+	medium = INV_SIZE + 6,
+	large  = INV_SIZE + 9,
+}
+
+local SUBCAT = {
+	"bag",
+	"armor",
+	"skins",
+	"awards",
+	"waypoints",
+}
+
+local PNG = {
+	bg = "i3_bg.png",
+	bg_full = "i3_bg_full.png",
+	bar = "i3_bar.png",
+	hotbar = "i3_hotbar.png",
+	search = "i3_search.png",
+	heart = "i3_heart.png",
+	heart_half = "i3_heart_half.png",
+	heart_grey = "i3_heart_grey.png",
+	prev = "i3_next.png^\\[transformFX",
+	next = "i3_next.png",
+	arrow = "i3_arrow.png",
+	trash = "i3_trash.png",
+	sort_az = "i3_sort_az.png",
+	sort_za = "i3_sort_za.png",
+	compress = "i3_compress.png",
+	fire = "i3_fire.png",
+	fire_anim = "i3_fire_anim.png",
+	book = "i3_book.png",
+	sign = "i3_sign.png",
+	cancel = "i3_cancel.png",
+	export = "i3_export.png",
+	slot = "i3_slot.png",
+	tab = "i3_tab.png",
+	tab_top = "i3_tab.png^\\[transformFY",
+	furnace_anim = "i3_furnace_anim.png",
+	bag = "i3_bag.png",
+	armor = "i3_armor.png",
+	awards = "i3_award.png",
+	skins = "i3_skin.png",
+	waypoints = "i3_waypoint.png",
+	teleport = "i3_teleport.png",
+	add = "i3_add.png",
+
+	cancel_hover = "i3_cancel.png^\\[brighten",
+	search_hover = "i3_search.png^\\[brighten",
+	export_hover = "i3_export.png^\\[brighten",
+	trash_hover = "i3_trash.png^\\[brighten^\\[colorize:#f00:100",
+	compress_hover = "i3_compress.png^\\[brighten",
+	sort_az_hover = "i3_sort_az.png^\\[brighten",
+	sort_za_hover = "i3_sort_za.png^\\[brighten",
+	prev_hover = "i3_next_hover.png^\\[transformFX",
+	next_hover = "i3_next_hover.png",
+	tab_hover = "i3_tab_hover.png",
+	tab_hover_top = "i3_tab_hover.png^\\[transformFY",
+	bag_hover = "i3_bag_hover.png",
+	armor_hover = "i3_armor_hover.png",
+	awards_hover = "i3_award_hover.png",
+	skins_hover = "i3_skin_hover.png",
+	waypoints_hover = "i3_waypoint_hover.png",
+	teleport_hover = "i3_teleport.png^\\[brighten",
+	add_hover = "i3_add.png^\\[brighten",
+}
+
+local fs_elements = {
+	label = "label[%f,%f;%s]",
+	box = "box[%f,%f;%f,%f;%s]",
+	image = "image[%f,%f;%f,%f;%s]",
+	tooltip = "tooltip[%f,%f;%f,%f;%s]",
+	button = "button[%f,%f;%f,%f;%s;%s]",
+	item_image = "item_image[%f,%f;%f,%f;%s]",
+	hypertext = "hypertext[%f,%f;%f,%f;%s;%s]",
+	bg9 = "background9[%f,%f;%f,%f;%s;false;%u]",
+	scrollbar = "scrollbar[%f,%f;%f,%f;%s;%s;%u]",
+	model = "model[%f,%f;%f,%f;%s;%s;%s;%s;%s;%s;%s]",
+	image_button = "image_button[%f,%f;%f,%f;%s;%s;%s]",
+	animated_image = "animated_image[%f,%f;%f,%f;;%s;%u;%u]",
+	item_image_button = "item_image_button[%f,%f;%f,%f;%s;%s;%s]",
+}
+
+local styles = sprintf([[
+	style_type[field;border=false;bgcolor=transparent]
+	style_type[label,field;font_size=16]
+	style_type[image_button;border=false;sound=i3_click]
+	style_type[item_image_button;border=false;bgimg_hovered=%s;sound=i3_click]
+
+	style[cancel;fgimg=%s;fgimg_hovered=%s;content_offset=0]
+	style[search;fgimg=%s;fgimg_hovered=%s;content_offset=0]
+	style[prev_page;fgimg=%s;fgimg_hovered=%s]
+	style[next_page;fgimg=%s;fgimg_hovered=%s]
+	style[prev_recipe;fgimg=%s;fgimg_hovered=%s]
+	style[next_recipe;fgimg=%s;fgimg_hovered=%s]
+	style[prev_usage;fgimg=%s;fgimg_hovered=%s]
+	style[next_usage;fgimg=%s;fgimg_hovered=%s]
+	style[waypoint_add;fgimg=%s;fgimg_hovered=%s;content_offset=0]
+	style[waypoint_delete;fgimg=%s;fgimg_hovered=%s;content_offset=0]
+	style[waypoint_teleport;fgimg=%s;fgimg_hovered=%s;content_offset=0]
+	style[pagenum,no_item,no_rcp;border=false;font=bold;font_size=18;content_offset=0]
+	style[btn_bag,btn_armor,btn_skins;font=bold;font_size=18;border=false;content_offset=0;sound=i3_click]
+	style[craft_rcp,craft_usg;border=false;noclip=true;font_size=16;sound=i3_craft;
+	      bgimg=i3_btn9.png;bgimg_hovered=i3_btn9_hovered.png;
+	      bgimg_pressed=i3_btn9_pressed.png;bgimg_middle=4,6]
+]],
+PNG.slot,
+PNG.cancel,   PNG.cancel_hover,
+PNG.search,   PNG.search_hover,
+PNG.prev,     PNG.prev_hover,
+PNG.next,     PNG.next_hover,
+PNG.prev,     PNG.prev_hover,
+PNG.next,     PNG.next_hover,
+PNG.prev,     PNG.prev_hover,
+PNG.next,     PNG.next_hover,
+PNG.add,      PNG.add_hover,
+PNG.trash,    PNG.trash_hover,
+PNG.teleport, PNG.teleport_hover)
+
+local function get_lang_code(info)
+	return info and info.lang_code
+end
+
+local function get_formspec_version(info)
+	return info and info.formspec_version or 1
+end
+
+local function outdated(name)
+	local fs = sprintf("size[5.8,1.3]image[0,0;1,1;%s]label[1,0;%s]button_exit[2.4,0.8;1,1;;OK]",
+		PNG.book,
+		"Your Minetest client is outdated.\nGet the latest version on minetest.net to use i3")
+
+	show_formspec(name, "i3", fs)
+end
+
+local old_is_creative_enabled = core.is_creative_enabled
+
+function core.is_creative_enabled(name)
+	return check_privs(name, {creative = true}) or old_is_creative_enabled(name)
+end
+
+i3.group_stereotypes = {
+	dye = "dye:white",
+	wool = "wool:white",
+	wood = "default:wood",
+	tree = "default:tree",
+	sand = "default:sand",
+	glass = "default:glass",
+	stick = "default:stick",
+	stone = "default:stone",
+	leaves = "default:leaves",
+	coal = "default:coal_lump",
+	vessel = "vessels:glass_bottle",
+	flower = "flowers:dandelion_yellow",
+	water_bucket = "bucket:bucket_water",
+	mesecon_conductor_craftable = "mesecons:wire_00000000_off",
+}
+
+local group_names = {
+	dye = S"Any dye",
+	coal = S"Any coal",
+	sand = S"Any sand",
+	tree = S"Any tree",
+	wool = S"Any wool",
+	glass = S"Any glass",
+	stick = S"Any stick",
+	stone = S"Any stone",
+	carpet = S"Any carpet",
+	flower = S"Any flower",
+	leaves = S"Any leaves",
+	vessel = S"Any vessel",
+	wood = S"Any wood planks",
+	mushroom = S"Any mushroom",
+
+	["color_red,flower"] = S"Any red flower",
+	["color_blue,flower"] = S"Any blue flower",
+	["color_black,flower"] = S"Any black flower",
+	["color_white,flower"] = S"Any white flower",
+	["color_green,flower"] = S"Any green flower",
+	["color_orange,flower"] = S"Any orange flower",
+	["color_yellow,flower"] = S"Any yellow flower",
+	["color_violet,flower"] = S"Any violet flower",
+
+	["color_red,dye"] = S"Any red dye",
+	["color_blue,dye"] = S"Any blue dye",
+	["color_grey,dye"] = S"Any grey dye",
+	["color_pink,dye"] = S"Any pink dye",
+	["color_cyan,dye"] = S"Any cyan dye",
+	["color_black,dye"] = S"Any black dye",
+	["color_white,dye"] = S"Any white dye",
+	["color_brown,dye"] = S"Any brown dye",
+	["color_green,dye"] = S"Any green dye",
+	["color_orange,dye"] = S"Any orange dye",
+	["color_yellow,dye"] = S"Any yellow dye",
+	["color_violet,dye"] = S"Any violet dye",
+	["color_magenta,dye"] = S"Any magenta dye",
+	["color_dark_grey,dye"] = S"Any dark grey dye",
+	["color_dark_green,dye"] = S"Any dark green dye",
+}
+
+i3.model_alias = {
+	["boats:boat"] = {name = "boats:boat", drawtype = "entity"},
+	["carts:cart"] = {name = "carts:cart", drawtype = "entity", frames = "0,0"},
+	["default:chest"] = {name = "default:chest_open"},
+	["default:chest_locked"] = {name = "default:chest_locked_open"},
+	["doors:door_wood"] = {name = "doors:door_wood_a"},
+	["doors:door_glass"] = {name = "doors:door_glass_a"},
+	["doors:door_obsidian_glass"] = {name = "doors:door_obsidian_glass_a"},
+	["doors:door_steel"] = {name = "doors:door_steel_a"},
+	["xpanes:door_steel_bar"] = {name = "xpanes:door_steel_bar_a"},
+}
+
+local function err(str)
+	return log("error", str)
+end
+
+local function msg(name, str)
+	return chat_send(name, sprintf("[i3] %s", str))
+end
+
+local function is_num(x)
+	return type(x) == "number"
+end
+
+local function is_str(x)
+	return type(x) == "string"
+end
+
+local function true_str(str)
+	return is_str(str) and str ~= ""
+end
+
+local function is_table(x)
+	return type(x) == "table"
+end
+
+local function is_func(x)
+	return type(x) == "function"
+end
+
+local function is_group(item)
+	return sub(item, 1, 6) == "group:"
+end
+
+local function fmt(elem, ...)
+	if not fs_elements[elem] then
+		return sprintf(elem, ...)
+	end
+
+	return sprintf(fs_elements[elem], ...)
+end
+
+local function clean_name(item)
+	if sub(item, 1, 1) == ":" or sub(item, 1, 1) == " " then
+		item = sub(item, 2)
+	end
+
+	return item
+end
+
+local function array_diff(t1, t2)
+	local hash = {}
+
+	for i = 1, #t1 do
+		local v = t1[i]
+		hash[v] = true
+	end
+
+	for i = 1, #t2 do
+		local v = t2[i]
+		hash[v] = nil
+	end
+
+	local diff, c = {}, 0
+
+	for i = 1, #t1 do
+		local v = t1[i]
+		if hash[v] then
+			c = c + 1
+			diff[c] = v
+		end
+	end
+
+	return diff
+end
+
+local function table_eq(T1, T2)
+	local avoid_loops = {}
+
+	local function recurse(t1, t2)
+		if type(t1) ~= type(t2) then return end
+
+		if not is_table(t1) then
+			return t1 == t2
+		end
+
+		if avoid_loops[t1] then
+			return avoid_loops[t1] == t2
+		end
+
+		avoid_loops[t1] = t2
+		local t2k, t2kv = {}, {}
+
+		for k in pairs(t2) do
+			if is_table(k) then
+				insert(t2kv, k)
+			end
+
+			t2k[k] = true
+		end
+
+		for k1, v1 in pairs(t1) do
+			local v2 = t2[k1]
+			if type(k1) == "table" then
+				local ok
+				for i = 1, #t2kv do
+					local tk = t2kv[i]
+					if table_eq(k1, tk) and recurse(v1, t2[tk]) then
+						remove(t2kv, i)
+						t2k[tk] = nil
+						ok = true
+						break
+					end
+				end
+
+				if not ok then return end
+			else
+				if v2 == nil then return end
+				t2k[k1] = nil
+				if not recurse(v1, v2) then return end
+			end
+		end
+
+		if next(t2k) then return end
+		return true
+	end
+
+	return recurse(T1, T2)
+end
+
+local function table_merge(t1, t2, hash)
+	t1 = t1 or {}
+	t2 = t2 or {}
+
+	if hash then
+		for k, v in pairs(t2) do
+			t1[k] = v
+		end
+	else
+		local c = #t1
+
+		for i = 1, #t2 do
+			c = c + 1
+			t1[c] = t2[i]
+		end
+	end
+
+	return t1
+end
+
+local function table_replace(t, val, new)
+	for k, v in pairs(t) do
+		if v == val then
+			t[k] = new
+		end
+	end
+end
+
+local function save_meta(player, entries)
+	local name = player:get_player_name()
+	local data = pdata[name]
+	if not data then return end
+
+	local meta = player:get_meta()
+
+	for _, entry in ipairs(entries) do
+		meta:set_string(entry, slz(data[entry]))
+	end
+end
+
+local craft_types = {}
+
+function i3.register_craft_type(name, def)
+	if not true_str(name) then
+		return err "i3.register_craft_type: name missing"
+	end
+
+	if not is_str(def.description) then
+		def.description = ""
+	end
+
+	craft_types[name] = def
+end
+
+function i3.register_craft(def)
+	local width, c = 0, 0
+
+	if true_str(def.url) then
+		if not http then
+			return err(fmt([[i3.register_craft(): Unable to reach %s.
+				No HTTP support for this mod: add it to the `secure.http_mods` or
+				`secure.trusted_mods` setting.]], def.url))
+		end
+
+		http.fetch({url = def.url}, function(result)
+			if result.succeeded then
+				local t = parse_json(result.data)
+				if is_table(t) then
+					return i3.register_craft(t)
+				end
+			end
+		end)
+
+		return
+	end
+
+	if not is_table(def) or not next(def) then
+		return err "i3.register_craft: craft definition missing"
+	end
+
+	if #def > 1 then
+		for _, v in pairs(def) do
+			i3.register_craft(v)
+		end
+		return
+	end
+
+	if def.result then
+		def.output = def.result -- Backward compatibility
+		def.result = nil
+	end
+
+	if not true_str(def.output) then
+		return err "i3.register_craft: output missing"
+	end
+
+	if not is_table(def.items) then
+		def.items = {}
+	end
+
+	if def.grid then
+		if not is_table(def.grid) then
+			def.grid = {}
+		end
+
+		if not is_table(def.key) then
+			def.key = {}
+		end
+
+		local cp = copy(def.grid)
+		sort(cp, function(a, b)
+			return #a > #b
+		end)
+
+		width = #cp[1]
+
+		for i = 1, #def.grid do
+			while #def.grid[i] < width do
+				def.grid[i] = def.grid[i] .. " "
+			end
+		end
+
+		for symbol in gmatch(concat(def.grid), ".") do
+			c = c + 1
+			def.items[c] = def.key[symbol]
+		end
+	else
+		local items, len = def.items, #def.items
+		def.items = {}
+
+		for i = 1, len do
+			local rlen = #split(items[i], ",")
+
+			if rlen > width then
+				width = rlen
+			end
+		end
+
+		for i = 1, len do
+			while #split(items[i], ",") < width do
+				items[i] = fmt("%s,", items[i])
+			end
+		end
+
+		for name in gmatch(concat(items, ","), "[%s%w_:]+") do
+			c = c + 1
+			def.items[c] = clean_name(name)
+		end
+	end
+
+	local item = match(def.output, "%S+")
+	recipes_cache[item] = recipes_cache[item] or {}
+
+	def.custom = true
+	def.width = width
+
+	insert(recipes_cache[item], def)
+end
+
+local recipe_filters = {}
+
+function i3.add_recipe_filter(name, f)
+	if not true_str(name) then
+		return err "i3.add_recipe_filter: name missing"
+	elseif not is_func(f) then
+		return err "i3.add_recipe_filter: function missing"
+	end
+
+	recipe_filters[name] = f
+end
+
+function i3.set_recipe_filter(name, f)
+	if not is_str(name) then
+		return err "i3.set_recipe_filter: name missing"
+	elseif not is_func(f) then
+		return err "i3.set_recipe_filter: function missing"
+	end
+
+	recipe_filters = {[name] = f}
+end
+
+function i3.delete_recipe_filter(name)
+	recipe_filters[name] = nil
+end
+
+function i3.get_recipe_filters()
+	return recipe_filters
+end
+
+local function apply_recipe_filters(recipes, player)
+	for _, filter in pairs(recipe_filters) do
+		recipes = filter(recipes, player)
+	end
+
+	return recipes
+end
+
+local search_filters = {}
+
+function i3.add_search_filter(name, f)
+	if not true_str(name) then
+		return err "i3.add_search_filter: name missing"
+	elseif not is_func(f) then
+		return err "i3.add_search_filter: function missing"
+	end
+
+	search_filters[name] = f
+end
+
+function i3.remove_search_filter(name)
+	search_filters[name] = nil
+end
+
+function i3.get_search_filters()
+	return search_filters
+end
+
+local function weird_desc(str)
+	return not true_str(str) or find(str, "\n") or not find(str, "%u")
+end
+
+local function toupper(str)
+	return str:gsub("%f[%w]%l", upper):gsub("_", " ")
+end
+
+local function snip(str, limit)
+	return #str > limit and fmt("%s...", sub(str, 1, limit - 3)) or str
+end
+
+local function get_desc(item)
+	if sub(item, 1, 1) == "_" then
+		item = sub(item, 2)
+	end
+
+	local def = reg_items[item]
+
+	if not def then
+		return S("Unknown Item (@1)", item)
+	end
+
+	local desc = def.description
+
+	if true_str(desc) then
+		desc = desc:trim():match("[^\n]*"):gsub("_", " ")
+
+		if not find(desc, "%u") then
+			desc = toupper(desc)
+		end
+
+		return desc
+
+	elseif true_str(item) then
+		return toupper(match(item, ":(.*)"))
+	end
+end
+
+local function item_has_groups(item_groups, groups)
+	for i = 1, #groups do
+		local group = groups[i]
+		if (item_groups[group] or 0) == 0 then return end
+	end
+
+	return true
+end
+
+local function extract_groups(str)
+	if sub(str, 1, 6) == "group:" then
+		return split(sub(str, 7), ",")
+	end
+end
+
+local function get_filtered_items(player, data)
+	local items, known, c = {}, 0, 0
+
+	for i = 1, #init_items do
+		local item = init_items[i]
+		local recipes = recipes_cache[item]
+		local usages = usages_cache[item]
+
+		recipes = #apply_recipe_filters(recipes or {}, player)
+		usages = #apply_recipe_filters(usages or {}, player)
+
+		if recipes > 0 or usages > 0 then
+			c = c + 1
+			items[c] = item
+
+			if data then
+				known = known + recipes + usages
+			end
+		end
+	end
+
+	if data then
+		data.known_recipes = known
+	end
+
+	return items
+end
+
+local function get_burntime(item)
+	return get_craft_result{method = "fuel", items = {item}}.time
+end
+
+local function cache_fuel(item)
+	local burntime = get_burntime(item)
+	if burntime > 0 then
+		fuel_cache[item] = {
+			type = "fuel",
+			items = {item},
+			burntime = burntime,
+			replacements = replacements.fuel[item],
+		}
+	end
+end
+
+local function show_item(def)
+	return def and def.groups.not_in_creative_inventory ~= 1 and
+		def.description and def.description ~= ""
+end
+
+local function search(data)
+	local filter = data.filter
+
+	if searches[filter] then
+		data.items = searches[filter]
+		return
+	end
+
+	local opt = "^(.-)%+([%w_]+)=([%w_,]+)"
+	local search_filter = next(search_filters) and match(filter, opt)
+	local filters = {}
+
+	if search_filter then
+		for filter_name, values in gmatch(filter, sub(opt, 6)) do
+			if search_filters[filter_name] then
+				values = split(values, ",")
+				filters[filter_name] = values
+			end
+		end
+	end
+
+	local filtered_list, c = {}, 0
+
+	for i = 1, #data.items_raw do
+		local item = data.items_raw[i]
+		local def = reg_items[item]
+		local desc = lower(translate(data.lang_code, def and def.description)) or ""
+		local search_in = fmt("%s %s", item, desc)
+		local temp, j, to_add = {}, 1
+
+		if search_filter then
+			for filter_name, values in pairs(filters) do
+				if values then
+					local func = search_filters[filter_name]
+					to_add = (j > 1 and temp[item] or j == 1) and
+						func(item, values) and (search_filter == "" or
+						find(search_in, search_filter, 1, true))
+
+					if to_add then
+						temp[item] = true
+					end
+
+					j = j + 1
+				end
+			end
+		else
+			to_add = find(search_in, filter, 1, true)
+		end
+
+		if to_add then
+			c = c + 1
+			filtered_list[c] = item
+		end
+	end
+
+	if not next(recipe_filters) then
+		-- Cache the results only if searched 2 times
+		if searches[filter] == nil then
+			searches[filter] = false
+		else
+			searches[filter] = filtered_list
+		end
+	end
+
+	data.items = filtered_list
+end
+
+local function get_item_usages(item, recipe, added)
+	local groups = extract_groups(item)
+
+	if groups then
+		for name, def in pairs(reg_items) do
+			if not added[name] and show_item(def) and item_has_groups(def.groups, groups) then
+				local usage = copy(recipe)
+				table_replace(usage.items, item, name)
+
+				usages_cache[name] = usages_cache[name] or {}
+				insert(usages_cache[name], 1, usage)
+
+				added[name] = true
+			end
+		end
+	elseif show_item(reg_items[item]) then
+		usages_cache[item] = usages_cache[item] or {}
+		insert(usages_cache[item], 1, recipe)
+	end
+end
+
+local function get_usages(recipe)
+	local added = {}
+
+	for _, item in pairs(recipe.items) do
+		item = reg_aliases[item] or item
+
+		if not added[item] then
+			get_item_usages(item, recipe, added)
+			added[item] = true
+		end
+	end
+end
+
+local function cache_usages(item)
+	local recipes = recipes_cache[item] or {}
+
+	for i = 1, #recipes do
+		get_usages(recipes[i])
+	end
+
+	if fuel_cache[item] then
+		usages_cache[item] = table_merge(usages_cache[item] or {}, {fuel_cache[item]})
+	end
+end
+
+local function drop_table(name, drop)
+	local count_sure = 0
+	local drop_items = drop.items or {}
+	local max_items = drop.max_items
+
+	for i = 1, #drop_items do
+		local di = drop_items[i]
+		local valid_rarity = di.rarity and di.rarity > 1
+
+		if di.rarity or not max_items or
+				(max_items and not di.rarity and count_sure < max_items) then
+			for j = 1, #di.items do
+				local dstack = ItemStack(di.items[j])
+				local dname  = dstack:get_name()
+				local dcount = dstack:get_count()
+				local empty  = dstack:is_empty()
+
+				if not empty and (dname ~= name or (dname == name and dcount > 1)) then
+					local rarity = valid_rarity and di.rarity
+
+					i3.register_craft{
+						type   = rarity and "digging_chance" or "digging",
+						items  = {name},
+						output = fmt("%s %u", dname, dcount),
+						rarity = rarity,
+						tools  = di.tools,
+					}
+				end
+			end
+		end
+
+		if not di.rarity then
+			count_sure = count_sure + 1
+		end
+	end
+end
+
+local function cache_drops(name, drop)
+	if true_str(drop) then
+		local dstack = ItemStack(drop)
+		local dname  = dstack:get_name()
+		local empty  = dstack:is_empty()
+
+		if not empty and dname ~= name then
+			i3.register_craft{
+				type = "digging",
+				items = {name},
+				output = drop,
+			}
+		end
+	elseif is_table(drop) then
+		drop_table(name, drop)
+	end
+end
+
+local function cache_recipes(item)
+	local recipes = get_all_recipes(item)
+
+	if replacements[item] then
+		local _recipes = {}
+
+		for k, v in ipairs(recipes or {}) do
+			_recipes[#recipes + 1 - k] = v
+		end
+
+		local shift = 0
+		local size_rpl = maxn(replacements[item])
+		local size_rcp = #_recipes
+
+		if size_rpl > size_rcp then
+			shift = size_rcp - size_rpl
+		end
+
+		for k, v in pairs(replacements[item]) do
+			k = k + shift
+
+			if _recipes[k] then
+				_recipes[k].replacements = v
+			end
+		end
+
+		recipes = _recipes
+	end
+
+	if recipes then
+		recipes_cache[item] = table_merge(recipes, recipes_cache[item] or {})
+	end
+end
+
+local function get_recipes(player, item)
+	local clean_item = reg_aliases[item] or item
+	local recipes = recipes_cache[clean_item]
+	local usages = usages_cache[clean_item]
+
+	if recipes then
+		recipes = apply_recipe_filters(recipes, player)
+	end
+
+	local no_recipes = not recipes or #recipes == 0
+	if no_recipes and not usages then return end
+	usages = apply_recipe_filters(usages, player)
+
+	local no_usages = not usages or #usages == 0
+
+	return not no_recipes and recipes or nil,
+	       not no_usages  and usages  or nil
+end
+
+local function groups_to_items(groups, get_all)
+	if not get_all and #groups == 1 then
+		local group = groups[1]
+		local stereotype = i3.group_stereotypes[group]
+		local def = reg_items[stereotype]
+
+		if def and show_item(def) then
+			return stereotype
+		end
+	end
+
+	local names = {}
+	for name, def in pairs(reg_items) do
+		if show_item(def) and item_has_groups(def.groups, groups) then
+			if get_all then
+				names[#names + 1] = name
+			else
+				return name
+			end
+		end
+	end
+
+	return get_all and names or ""
+end
+
+local function __sort(inv, reverse)
+	sort(inv, function(a, b)
+		if not is_str(a) then
+			a = a:get_name()
+		end
+
+		if not is_str(b) then
+			b = b:get_name()
+		end
+
+		if reverse then
+			return a > b
+		end
+
+		return a < b
+	end)
+end
+
+local function sort_itemlist(player, az)
+	local inv = player:get_inventory()
+	local list = inv:get_list("main")
+	local size = inv:get_size("main")
+	local new_inv, stack_meta = {}, {}
+
+	for i = 1, size do
+		local stack = list[i]
+		local name = stack:get_name()
+		local count = stack:get_count()
+		local empty = stack:is_empty()
+		local meta = stack:get_meta():to_table()
+		local wear = stack:get_wear() > 0
+
+		if not empty then
+			if next(meta.fields) or wear then
+				stack_meta[#stack_meta + 1] = stack
+			else
+				new_inv[#new_inv + 1] = fmt("%s %u", name, count)
+			end
+		end
+	end
+
+	for i = 1, #stack_meta do
+		new_inv[#new_inv + 1] = stack_meta[i]
+	end
+
+	if az then
+		__sort(new_inv)
+	else
+		__sort(new_inv, true)
+	end
+
+	inv:set_list("main", new_inv)
+end
+
+local function compress_items(player)
+	local inv = player:get_inventory()
+	local list = inv:get_list("main")
+	local size = inv:get_size("main")
+	local new_inv, _new_inv, special = {}, {}, {}
+
+	for i = 1, size do
+		local stack = list[i]
+		local name = stack:get_name()
+		local count = stack:get_count()
+		local stackmax = stack:get_stack_max()
+		local empty = stack:is_empty()
+		local meta = stack:get_meta():to_table()
+		local wear = stack:get_wear() > 0
+
+		if not empty then
+			if next(meta.fields) or wear or count >= stackmax then
+				special[#special + 1] = stack
+			else
+				new_inv[name] = new_inv[name] or 0
+				new_inv[name] = new_inv[name] + count
+			end
+		end
+	end
+
+	for name, count in pairs(new_inv) do
+		local stackmax = ItemStack(name):get_stack_max()
+		local iter = ceil(count / stackmax)
+		local leftover = count
+
+		for _ = 1, iter do
+			_new_inv[#_new_inv + 1] = fmt("%s %u", name, min(stackmax, leftover))
+			leftover = leftover - stackmax
+		end
+	end
+
+	for i = 1, #special do
+		_new_inv[#_new_inv + 1] = special[i]
+	end
+
+	__sort(_new_inv)
+	inv:set_list("main", _new_inv)
+end
+
+local function get_stack_max(inv, data, is_recipe, rcp)
+	local list = inv:get_list("main")
+	local size = inv:get_size("main")
+	local counts_inv, counts_rcp, counts = {}, {}, {}
+	local rcp_usg = is_recipe and "recipe" or "usage"
+
+	for _, it in pairs(rcp.items) do
+		counts_rcp[it] = (counts_rcp[it] or 0) + 1
+	end
+
+	data.export_counts[rcp_usg] = {}
+	data.export_counts[rcp_usg].rcp = counts_rcp
+
+	for i = 1, size do
+		local stack = list[i]
+
+		if not stack:is_empty() then
+			local item = stack:get_name()
+			local count = stack:get_count()
+
+			for name in pairs(counts_rcp) do
+				if is_group(name) then
+					local def = reg_items[item]
+
+					if def then
+						local groups = extract_groups(name)
+
+						if item_has_groups(def.groups, groups) then
+							counts_inv[name] = (counts_inv[name] or 0) + count
+						end
+					end
+				end
+			end
+
+			counts_inv[item] = (counts_inv[item] or 0) + count
+		end
+	end
+
+	data.export_counts[rcp_usg].inv = counts_inv
+
+	for name in pairs(counts_rcp) do
+		counts[name] = floor((counts_inv[name] or 0) / (counts_rcp[name] or 0))
+	end
+
+	local max_stacks = math.huge
+
+	for _, count in pairs(counts) do
+		if count < max_stacks then
+			max_stacks = count
+		end
+	end
+
+	return max_stacks
+end
+
+local function spawn_item(player, stack)
+	local dir     = player:get_look_dir()
+	local ppos    = player:get_pos()
+	      ppos.y  = ppos.y + 1.625
+	local look_at = vec_add(ppos, vec_mul(dir, 1))
+
+	core.add_item(look_at, stack)
+end
+
+local function get_stack(player, pname, stack, message)
+	local inv = player:get_inventory()
+
+	if inv:room_for_item("main", stack) then
+		inv:add_item("main", stack)
+		msg(pname, S("@1 added in your inventory", message))
+	else
+		spawn_item(player, stack)
+		msg(pname, S("@1 spawned", message))
+	end
+end
+
+local function craft_stack(player, pname, data, craft_rcp)
+	local inv = player:get_inventory()
+	local rcp_usg = craft_rcp and "recipe" or "usage"
+	local output = craft_rcp and data.recipes[data.rnum].output or data.usages[data.unum].output
+	      output = ItemStack(output)
+	local stackname, stackcount, stackmax = output:get_name(), output:get_count(), output:get_stack_max()
+	local scrbar_val = data[fmt("scrbar_%s", craft_rcp and "rcp" or "usg")] or 1
+
+	for name, count in pairs(data.export_counts[rcp_usg].rcp) do
+		local items = {[name] = count}
+
+		if is_group(name) then
+			items = {}
+			local groups = extract_groups(name)
+			local item_groups = groups_to_items(groups, true)
+			local remaining = count
+
+			for _, item in ipairs(item_groups) do
+			for _name, _count in pairs(data.export_counts[rcp_usg].inv) do
+				if item == _name and remaining > 0 then
+					local c = min(remaining, _count)
+					items[item] = c
+					remaining = remaining - c
+				end
+
+				if remaining == 0 then break end
+			end
+			end
+		end
+
+		for k, v in pairs(items) do
+			inv:remove_item("main", fmt("%s %s", k, v * scrbar_val))
+		end
+	end
+
+	local count = stackcount * scrbar_val
+	local desc = get_desc(stackname)
+	local iter = ceil(count / stackmax)
+	local leftover = count
+
+	for _ = 1, iter do
+		local c = min(stackmax, leftover)
+		local message
+
+		if c > 1 then
+			message = clr("#ff0", fmt("%s x %s", c, desc))
+		else
+			message = clr("#ff0", fmt("%s", desc))
+		end
+
+		local stack = ItemStack(fmt("%s %s", stackname, c))
+		get_stack(player, pname, stack, message)
+		leftover = leftover - stackmax
+	end
+end
+
+local function select_item(player, name, data, _f)
+	local item
+
+	for field in pairs(_f) do
+		if find(field, ":") then
+			item = field
+			break
+		end
+	end
+
+	if not item then
+		return
+	elseif sub(item, -4) == "_inv" then
+		item = sub(item, 1, -5)
+	elseif sub(item, 1, 1) == "_" then
+		item = sub(item, 2)
+	elseif sub(item, 1, 6) == "group|" then
+		item = match(item, "([%w:_]+)$")
+	end
+
+	item = reg_aliases[item] or item
+	if not reg_items[item] then return end
+
+	if core.is_creative_enabled(name) then
+		local stack = ItemStack(item)
+		local stackmax = stack:get_stack_max()
+		stack = fmt("%s %s", item, stackmax)
+		get_stack(player, name, stack, clr("#ff0", fmt("%u x %s", stackmax, item)))
+		return
+	end
+
+	if item == data.query_item then return end
+	local recipes, usages = get_recipes(player, item)
+
+	data.query_item = item
+	data.recipes    = recipes
+	data.usages     = usages
+	data.rnum       = 1
+	data.unum       = 1
+	data.scrbar_rcp = 1
+	data.scrbar_usg = 1
+	data.export_rcp = nil
+	data.export_usg = nil
+end
+
+local function repairable(tool)
+	local def = reg_tools[tool]
+	return toolrepair and def and def.groups and def.groups.disable_repair ~= 1
+end
+
+local function is_fav(favs, query_item)
+	local fav, i
+	for j = 1, #favs do
+		if favs[j] == query_item then
+			fav = true
+			i = j
+			break
+		end
+	end
+
+	return fav, i
+end
+
+local function get_tooltip(item, info)
+	local tooltip
+
+	if info.groups then
+		sort(info.groups)
+		tooltip = group_names[concat(info.groups, ",")]
+
+		if not tooltip then
+			local groupstr = {}
+
+			for i = 1, #info.groups do
+				insert(groupstr, clr("#ff0", info.groups[i]))
+			end
+
+			groupstr = concat(groupstr, ", ")
+			tooltip = S("Any item belonging to the groups: @1", groupstr)
+		end
+	else
+		tooltip = get_desc(item)
+	end
+
+	local function add(str)
+		return fmt("%s\n%s", tooltip, str)
+	end
+
+	if info.cooktime then
+		tooltip = add(S("Cooking time: @1", clr("#ff0", info.cooktime)))
+	end
+
+	if info.burntime then
+		tooltip = add(S("Burning time: @1", clr("#ff0", info.burntime)))
+	end
+
+	if info.replace then
+		for i = 1, #info.replace.items do
+			local rpl = match(info.replace.items[i], "%S+")
+			local desc = clr("#ff0", get_desc(rpl))
+
+			if info.replace.type == "cooking" then
+				tooltip = add(S("Replaced by @1 on smelting", desc))
+			elseif info.replace.type == "fuel" then
+				tooltip = add(S("Replaced by @1 on burning", desc))
+			else
+				tooltip = add(S("Replaced by @1 on crafting", desc))
+			end
+		end
+	end
+
+	if info.repair then
+		tooltip = add(S("Repairable by step of @1", clr("#ff0", toolrepair .. "%")))
+	end
+
+	if info.rarity then
+		local chance = (1 / max(1, info.rarity)) * 100
+		tooltip = add(S("@1 of chance to drop", clr("#ff0", chance .. "%")))
+	end
+
+	if info.tools then
+		local several = #info.tools > 1
+		local names = several and "\n" or ""
+
+		if several then
+			for i = 1, #info.tools do
+				names = fmt("%s\t\t- %s\n", names, clr("#ff0", get_desc(info.tools[i])))
+			end
+
+			tooltip = add(S("Only drop if using one of these tools: @1", sub(names, 1, -2)))
+		else
+			tooltip = add(S("Only drop if using this tool: @1",
+				clr("#ff0", get_desc(info.tools[1]))))
+		end
+	end
+
+	return fmt("tooltip[%s;%s]", item, ESC(tooltip))
+end
+
+local function get_output_fs(fs, data, rcp, is_recipe, shapeless, right, btn_size, _btn_size)
+	local custom_recipe = craft_types[rcp.type]
+
+	if custom_recipe or shapeless or rcp.type == "cooking" then
+		local icon = custom_recipe and custom_recipe.icon or shapeless and "shapeless" or "furnace"
+
+		if not custom_recipe then
+			icon = fmt("i3_%s.png^\\[resize:16x16", icon)
+		end
+
+		local pos_x = right + btn_size + 0.42
+		local pos_y = data.yoffset + 0.9
+
+		if sub(icon, 1, 10) == "i3_furnace" then
+			fs("animated_image", pos_x, pos_y, 0.5, 0.5, PNG.furnace_anim, 8, 180)
+		else
+			fs("image", pos_x, pos_y, 0.5, 0.5, icon)
+		end
+
+		local tooltip = custom_recipe and custom_recipe.description or
+				shapeless and S"Shapeless" or S"Cooking"
+
+		fs("tooltip", pos_x, pos_y, 0.5, 0.5, ESC(tooltip))
+	end
+
+	local arrow_X = right + 0.2 + (_btn_size or ITEM_BTN_SIZE)
+	local X = arrow_X + 1.2
+	local Y = data.yoffset + 1.4
+
+	fs("image", arrow_X, Y + 0.06, 1, 1, PNG.arrow)
+
+	if rcp.type == "fuel" then
+		fs("animated_image", X + 0.05, Y, ITEM_BTN_SIZE, ITEM_BTN_SIZE, PNG.fire_anim, 8, 180)
+	else
+		local item = rcp.output
+		      item = ItemStack(clean_name(item))
+		local name = item:get_name()
+		local count = item:get_count()
+		local bt_s = ITEM_BTN_SIZE * 1.2
+
+		fs("image", X, Y - 0.11, bt_s, bt_s, PNG.slot)
+
+		local _name = fmt("_%s", name)
+
+		fs("item_image_button",
+			X + 0.11, Y, ITEM_BTN_SIZE, ITEM_BTN_SIZE,
+			fmt("%s %u", name, count * (is_recipe and data.scrbar_rcp or data.scrbar_usg or 1)),
+			_name, "")
+
+		local def = reg_items[name]
+		local unknown = not def or nil
+		local desc = def and def.description
+		local weird = name ~= "" and desc and weird_desc(desc) or nil
+		local burntime = fuel_cache[name] and fuel_cache[name].burntime
+
+		local infos = {
+			unknown  = unknown,
+			weird    = weird,
+			burntime = burntime,
+			repair   = repairable(name),
+			rarity   = rcp.rarity,
+			tools    = rcp.tools,
+		}
+
+		if next(infos) then
+			fs(get_tooltip(_name, infos))
+		end
+	end
+end
+
+local function get_grid_fs(fs, data, rcp, is_recipe)
+	local width = rcp.width or 1
+	local right, btn_size, _btn_size = 0, ITEM_BTN_SIZE
+	local cooktime, shapeless
+
+	if rcp.type == "cooking" then
+		cooktime, width = width, 1
+	elseif width == 0 and not rcp.custom then
+		shapeless = true
+		local n = #rcp.items
+		width = (n < 5 and n > 1) and 2 or min(3, max(1, n))
+	end
+
+	local rows = ceil(maxn(rcp.items) / width)
+	local large_recipe = width > 3 or rows > 3
+
+	if large_recipe then
+		fs("style_type[item_image_button;border=true]")
+	end
+
+	for i = 1, width * rows do
+		local item = rcp.items[i] or ""
+		item = clean_name(item)
+		local name = match(item, "%S*")
+
+		local X = ceil((i - 1) % width - width)
+		X = X + (X * 0.2) + data.xoffset + 3.9
+
+		local Y = ceil(i / width) - min(2, rows)
+		Y = Y + (Y * 0.15)  + data.yoffset + 1.4
+
+		if large_recipe then
+			btn_size = (3 / width) * (3 / rows) + 0.3
+			_btn_size = btn_size
+
+			local xi = (i - 1) % width
+			local yi = floor((i - 1) / width)
+
+			X = btn_size * xi + data.xoffset + 0.3 + (xi * 0.05)
+			Y = btn_size * yi + data.yoffset + 0.2 + (yi * 0.05)
+		end
+
+		if X > right then
+			right = X
+		end
+
+		local groups
+
+		if is_group(name) then
+			groups = extract_groups(name)
+			item = groups_to_items(groups)
+		end
+
+		local label = groups and "\nG" or ""
+		local replace
+
+		for j = 1, #(rcp.replacements or {}) do
+			local replacement = rcp.replacements[j]
+			if replacement[1] == name then
+				replace = replace or {type = rcp.type, items = {}}
+
+				local added
+
+				for _, v in ipairs(replace.items) do
+					if replacement[2] == v then
+						added = true
+						break
+					end
+				end
+
+				if not added then
+					label = fmt("%s%s\nR", label ~= "" and "\n" or "", label)
+					replace.items[#replace.items + 1] = replacement[2]
+				end
+			end
+		end
+
+		if not large_recipe then
+			fs("image", X, Y, btn_size, btn_size, PNG.slot)
+		end
+
+		local btn_name = groups and fmt("group|%s|%s", groups[1], item) or item
+
+		fs("item_image_button", X, Y, btn_size, btn_size,
+			fmt("%s %u", item, is_recipe and data.scrbar_rcp or data.scrbar_usg or 1),
+			btn_name, label)
+
+		local def = reg_items[name]
+		local unknown = not def or nil
+		unknown = not groups and unknown or nil
+		local desc = def and def.description
+		local weird = name ~= "" and desc and weird_desc(desc) or nil
+		local burntime = fuel_cache[name] and fuel_cache[name].burntime
+
+		local infos = {
+			unknown  = unknown,
+			weird    = weird,
+			groups   = groups,
+			burntime = burntime,
+			cooktime = cooktime,
+			replace  = replace,
+		}
+
+		if next(infos) then
+			fs(get_tooltip(btn_name, infos))
+		end
+	end
+
+	if large_recipe then
+		fs("style_type[item_image_button;border=false]")
+	end
+
+	get_output_fs(fs, data, rcp, is_recipe, shapeless, right, btn_size, _btn_size)
+end
+
+local function get_rcp_lbl(fs, data, panel, rn, is_recipe)
+	local lbl = ES("Usage @1 of @2", data.unum, rn)
+
+	if is_recipe then
+		lbl = ES("Recipe @1 of @2", data.rnum, rn)
+	end
+
+	local one = rn == 1
+	local y = data.yoffset + 3.3
+
+	fs("hypertext", data.xoffset + (one and 4.7 or 3.95), y, 3, 0.6, "",
+		fmt("<global size=16><right>%s</right>", lbl))
+
+	if not one then
+		local btn_suffix = is_recipe and "recipe" or "usage"
+		local prev_name = fmt("prev_%s", btn_suffix)
+		local next_name = fmt("next_%s", btn_suffix)
+		local size = 0.3
+
+		fs("image_button", data.xoffset + 7.05, y, size, size, "", prev_name, "")
+		fs("image_button", data.xoffset + 7.5,  y, size, size, "", next_name, "")
+	end
+
+	local rcp = is_recipe and panel.rcp[data.rnum] or panel.rcp[data.unum]
+	get_grid_fs(fs, data, rcp, is_recipe)
+end
+
+local function get_model_fs(fs, data, def, model_alias)
+	if model_alias then
+		if model_alias.drawtype == "entity" then
+			def = reg_entities[model_alias.name]
+			local init_props = def.initial_properties
+			def.textures = init_props and init_props.textures or def.textures
+			def.mesh = init_props and init_props.mesh or def.mesh
+		else
+			def = reg_items[model_alias.name]
+		end
+	end
+
+	local tiles = def.tiles or def.textures or {}
+	local t = {}
+
+	for _, v in ipairs(tiles) do
+		local _name
+
+		if v.color then
+			if is_num(v.color) then
+				local hex = fmt("%02x", v.color)
+
+				while #hex < 8 do
+					hex = "0" .. hex
+				end
+
+				_name = fmt("%s^[multiply:%s", v.name,
+					fmt("#%s%s", sub(hex, 3), sub(hex, 1, 2)))
+			else
+				_name = fmt("%s^[multiply:%s", v.name, v.color)
+			end
+		elseif v.animation then
+			_name = fmt("%s^[verticalframe:%u:0", v.name, v.animation.aspect_h)
+		end
+
+		t[#t + 1] = _name or v.name or v
+	end
+
+	while #t < 6 do
+		t[#t + 1] = t[#t]
+	end
+
+	fs("model", data.xoffset + 6.6, data.yoffset + 0.05, 1.3, 1.3, "",
+		def.mesh, concat(t, ","), "0,0", "true", "true",
+		model_alias and model_alias.frames or "")
+end
+
+local function get_header(fs, data)
+	local fav = is_fav(data.favs, data.query_item)
+	local nfavs = #data.favs
+	local star_x, star_y, star_size = data.xoffset + 0.4, data.yoffset + 0.5, 0.4
+
+	if nfavs < MAX_FAVS or (nfavs == MAX_FAVS and fav) then
+		local fav_marked = fmt("i3_fav%s.png", fav and "_off" or "")
+
+		fs(fmt("style[fav;fgimg=%s;fgimg_hovered=%s;fgimg_pressed=%s]",
+			fmt("i3_fav%s.png", fav and "" or "_off"), fav_marked, fav_marked))
+		fs("image_button", star_x, star_y, star_size, star_size, "", "fav", "")
+		fs(fmt("tooltip[fav;%s]", fav and ES"Unmark this item" or ES"Mark this item"))
+	else
+		fs(fmt("style[nofav;fgimg=%s;fgimg_hovered=%s;fgimg_pressed=%s]",
+			"i3_fav_off.png", PNG.cancel, PNG.cancel))
+		fs("image_button", star_x, star_y, star_size, star_size, "", "nofav", "")
+		fs(fmt("tooltip[nofav;%s]", ES"Cannot mark this item. Bookmark limit reached."))
+	end
+
+	local desc_lim, name_lim = 33, 34
+	local desc = translate(data.lang_code, get_desc(data.query_item))
+	      desc = ESC(desc)
+	local tech_name = data.query_item
+	local X = data.xoffset + 1.05
+	local Y1 = data.yoffset + 0.47
+	local Y2 = Y1 + 0.5
+
+	if #desc > desc_lim then
+		fs("tooltip", X, Y1 - 0.1, 5.7, 0.24, desc)
+		desc = snip(desc, desc_lim)
+	end
+
+	if #tech_name > name_lim then
+		fs("tooltip", X, Y2 - 0.1, 5.7, 0.24, tech_name)
+		tech_name = snip(tech_name, name_lim)
+	end
+
+	fs("style_type[label;font=bold;font_size=20]")
+	fs("label", X, Y1, desc)
+	fs("style_type[label;font=mono;font_size=16]")
+	fs("label", X, Y2, clr("#7bf", tech_name))
+	fs("style_type[label;font=normal;font_size=16]")
+
+	local def = reg_items[data.query_item]
+	local model_alias = i3.model_alias[data.query_item]
+
+	if def.drawtype == "mesh" or model_alias then
+		get_model_fs(fs, data, def, model_alias)
+	else
+		fs("item_image", data.xoffset + 6.8, data.yoffset + 0.17, 1.1, 1.1, data.query_item)
+	end
+end
+
+local function get_export_fs(fs, data, is_recipe, is_usage, max_stacks_rcp, max_stacks_usg)
+	local name = is_recipe and "rcp" or "usg"
+	local show_export = (is_recipe and data.export_rcp) or (is_usage and data.export_usg)
+
+	fs(fmt("style[export_%s;fgimg=%s;fgimg_hovered=%s]",
+		name, fmt("%s", show_export and PNG.export_hover or PNG.export), PNG.export_hover))
+	fs("image_button", data.xoffset + 7.35, data.yoffset + 0.2, 0.45, 0.45, "", fmt("export_%s", name), "")
+	fs(fmt("tooltip[export_%s;%s]", name, ES"Quick crafting"))
+
+	if not show_export then return end
+
+	local craft_max = is_recipe and max_stacks_rcp or max_stacks_usg
+	local stack_fs = (is_recipe and data.scrbar_rcp) or (is_usage and data.scrbar_usg) or 1
+
+	if stack_fs > craft_max then
+		stack_fs = craft_max
+
+		if is_recipe then
+			data.scrbar_rcp = craft_max
+		elseif is_usage then
+			data.scrbar_usg = craft_max
+		end
+	end
+
+	fs(fmt("style[scrbar_%s;noclip=true]", name),
+	   fmt("scrollbaroptions[min=1;max=%u;smallstep=1]", craft_max))
+	fs("scrollbar", data.xoffset + 8.1, data.yoffset, 3, 0.35, "horizontal", fmt("scrbar_%s", name), stack_fs)
+	fs("button", data.xoffset + 8.1, data.yoffset + 0.4, 3, 0.7, fmt("craft_%s", name),
+		ES("Craft (x@1)", stack_fs))
+end
+
+local function get_rcp_extra(player, data, fs, panel, is_recipe, is_usage)
+	local rn = panel.rcp and #panel.rcp
+
+	if rn then
+		local rcp_normal = is_recipe and panel.rcp[data.rnum].type == "normal"
+		local usg_normal = is_usage and panel.rcp[data.unum].type == "normal"
+		local max_stacks_rcp, max_stacks_usg = 0, 0
+		local inv = player:get_inventory()
+
+		if rcp_normal then
+			max_stacks_rcp = get_stack_max(inv, data, is_recipe, panel.rcp[data.rnum])
+		end
+
+		if usg_normal then
+			max_stacks_usg = get_stack_max(inv, data, is_recipe, panel.rcp[data.unum])
+		end
+
+		if is_recipe and max_stacks_rcp == 0 then
+			data.export_rcp = nil
+			data.scrbar_rcp = 1
+		elseif is_usage and max_stacks_usg == 0 then
+			data.export_usg = nil
+			data.scrbar_usg = 1
+		end
+
+		if max_stacks_rcp > 0 or max_stacks_usg > 0 then
+			get_export_fs(fs, data, is_recipe, is_usage, max_stacks_rcp, max_stacks_usg)
+		end
+
+		get_rcp_lbl(fs, data, panel, rn, is_recipe)
+	else
+		local lbl = is_recipe and ES"No recipes" or ES"No usages"
+		fs("button", data.xoffset + 0.1, data.yoffset + (panel.height / 2) - 0.5,
+			7.8, 1, "no_rcp", lbl)
+	end
+end
+
+local function get_favs(fs, data)
+	fs("label", data.xoffset + 0.4, data.yoffset + 0.4, ES"Bookmarks")
+
+	for i = 1, #data.favs do
+		local item = data.favs[i]
+		local X = data.xoffset - 0.7 + (i * 1.2)
+		local Y = data.yoffset + 0.8
+
+		if data.query_item == item then
+			fs("image", X, Y, ITEM_BTN_SIZE, ITEM_BTN_SIZE, PNG.slot)
+		end
+
+		fs("item_image_button", X, Y, ITEM_BTN_SIZE, ITEM_BTN_SIZE, item, item, "")
+	end
+end
+
+local function get_panels(player, data, fs)
+	local _title   = {name = "title", height = 1.4}
+	local _favs    = {name = "favs",  height = 2.23}
+	local _recipes = {name = "recipes", rcp = data.recipes, height = 3.9}
+	local _usages  = {name = "usages",  rcp = data.usages,  height = 3.9}
+	local panels   = {_title, _recipes, _usages, _favs}
+
+	for idx = 1, #panels do
+		local panel = panels[idx]
+		data.yoffset = 0
+
+		if idx > 1 then
+			for _idx = idx - 1, 1, -1 do
+				data.yoffset = data.yoffset + panels[_idx].height + 0.1
+			end
+		end
+
+		fs("bg9", data.xoffset + 0.1, data.yoffset, 7.9, panel.height, PNG.bg_full, 10)
+
+		local is_recipe, is_usage = panel.name == "recipes", panel.name == "usages"
+
+		if is_recipe or is_usage then
+			get_rcp_extra(player, data, fs, panel, is_recipe, is_usage)
+		elseif panel.name == "title" then
+			get_header(fs, data)
+		elseif panel.name == "favs" then
+			get_favs(fs, data)
+		end
+	end
+end
+
+local function add_subtitle(fs, name, y, ctn_len, font_size, label)
+	fs(fmt("style[%s;font=bold;font_size=%u;border=false;content_offset=0]", name, font_size))
+	fs("button", 0, y, ctn_len, 0.5, name, ESC(label))
+	fs("image", 0, y + 0.55, ctn_len, 0.035, PNG.bar)
+end
+
+local function get_award_list(data, fs, ctn_len, yextra, award_list, awards_unlocked, award_list_nb)
+	local percent = fmt("%.1f%%", (awards_unlocked * 100) / award_list_nb):gsub(".0", "")
+
+	add_subtitle(fs, "awards", yextra, ctn_len, 18,
+		ES("Achievements: @1 of @2 (@3)", awards_unlocked, award_list_nb, percent))
+
+	for i = 1, award_list_nb do
+		local award = award_list[i]
+		local y = yextra - 0.5 + i + (i * 0.3)
+
+		local def, progress = award.def, award.progress
+		local title, desc = def.title, def.description
+
+		title = translate(data.lang_code, title)
+		desc = translate(data.lang_code, desc):gsub("%.$", "")
+
+		local title_lim, _title = 27
+		local desc_lim, _desc = 39
+		local icon_size = 1.1
+		local box_len = ctn_len - icon_size + 0.1
+
+		if #title > title_lim then
+			_title = snip(title, title_lim)
+		end
+
+		if #desc > desc_lim then
+			_desc = snip(desc, desc_lim)
+		end
+
+		if not award.unlocked and def.secret then
+			title = ES"Secret award"
+			desc = ES"Unlock this award to find out what it is"
+		end
+
+		local icon = def.icon or "awards_unknown.png"
+
+		if not award.unlocked then
+			icon = fmt("%s^\\[colorize:#000:180", icon)
+		end
+
+		fs[#fs + 1] = fmt("image", 0, y + 0.01, icon_size, icon_size, icon)
+		fs[#fs + 1] = "style_type[box;colors=#bababa30,#bababa30,#bababa05,#bababa05]"
+		fs[#fs + 1] = fmt("box", icon_size + 0.1, y, box_len, icon_size, "")
+
+		if progress then
+			local current, target = progress.current, progress.target
+			local curr_bar = (current * box_len) / target
+
+			fs[#fs + 1] = fmt("box", icon_size + 0.1, y + 0.8, box_len, 0.3, "#101010")
+			fs[#fs + 1] = "style_type[box;colors=#9dc34c80,#9dc34c,#9dc34c,#9dc34c80]"
+			fs[#fs + 1] = fmt("box", icon_size + 0.1, y + 0.8, curr_bar, 0.3, "")
+			fs[#fs + 1] = "style_type[label;font_size=14]"
+			fs[#fs + 1] = fmt("label", icon_size + 0.5, y + 0.97, fmt("%u / %u", current, target))
+
+			y = y - 0.14
+		end
+
+		title = _title or title
+		desc = _desc or desc
+
+		fs[#fs + 1] = "style_type[label;font=bold;font_size=17]"
+		fs[#fs + 1] = fmt("label", icon_size + 0.2, y + 0.4, title)
+		fs[#fs + 1] = "style_type[label;font=normal;font_size=15]"
+		fs[#fs + 1] = fmt("label", icon_size + 0.2, y + 0.75, clr("#bbbbbb", desc))
+		fs[#fs + 1] = "style_type[label;font_size=16]"
+	end
+end
+
+local function get_ctn_content(fs, data, player, yoffset, ctn_len, award_list, awards_unlocked, award_list_nb)
+	local name = player:get_player_name()
+	add_subtitle(fs, "player_name", 0, ctn_len, 22, ESC(name))
+
+	local hp = damage_enabled and (data.hp or player:get_hp()) or 20
+	local half = ceil((hp / 2) % 1)
+	local hearts = (hp / 2) + half
+	local heart_size = 0.35
+	local heart_x, heart_h = 0.65, yoffset + 0.75
+
+	for i = 1, 10 do
+		fs("image", heart_x + ((i - 1) * (heart_size + 0.1)), heart_h,
+			heart_size, heart_size, PNG.heart_grey)
+	end
+
+	if damage_enabled then
+		for i = 1, hearts do
+			fs("image", heart_x + ((i - 1) * (heart_size + 0.1)), heart_h,
+				heart_size, heart_size,
+				(half == 1 and i == floor(hearts)) and PNG.heart_half or PNG.heart)
+		end
+	end
+
+	fs(fmt("list[current_player;craft;%f,%f;3,3;]", 0, yoffset + 1.45))
+	fs("image", 3.47, yoffset + 2.69, 0.85, 0.85, PNG.arrow)
+	fs(fmt("list[current_player;craftpreview;%f,%f;1,1;]", 4.45, yoffset + 2.6),
+	   fmt("list[detached:i3_trash;main;%f,%f;1,1;]", 4.45, yoffset + 3.75))
+	fs("image", 4.45, yoffset + 3.75, 1, 1, PNG.trash)
+
+	local yextra = 5.5
+
+	for i, title in ipairs(SUBCAT) do
+		local btn_name = fmt("btn_%s", title)
+
+		fs(fmt("style[btn_%s;fgimg=%s;fgimg_hovered=%s;content_offset=0]", title,
+			data.subcat == i and PNG[fmt("%s_hover", title)] or PNG[title],
+			PNG[fmt("%s_hover", title)]))
+
+		fs("image_button", 0.25 + ((i - 1) * 1.18), yextra - 0.2, 0.5, 0.5, "", btn_name, "")
+		fs(fmt("tooltip[%s;%s]", btn_name, title:gsub("^%l", upper)))
+	end
+
+	fs("box", 0, yextra + 0.45, ctn_len, 0.045, "#bababa50")
+	fs("box", (data.subcat - 1) * 1.18, yextra + 0.45, 1, 0.045, "#f9826c")
+
+	local function not_installed(modname)
+		fs("hypertext", 0, yextra + 0.9, ctn_len, 0.6, "",
+			fmt("<center><style color=#7bf font=mono>%s</style> not installed</center>", modname))
+	end
+
+	if data.subcat == 1 then
+		fs(fmt("list[detached:%s_backpack;main;0,%f;1,1;]", ESC(name), yextra + 0.7))
+
+		if not data.bag:get_stack("main", 1):is_empty() then
+			fs("hypertext", 1.2, yextra + 0.89, ctn_len - 1.9, 0.8, "",
+				ES("The inventory is extended by @1 slots", BAG_SIZES[data.bag_size] - INV_SIZE))
+		end
+
+	elseif data.subcat == 2 then
+		if __3darmor then
+			fs(fmt("list[detached:%s_armor;armor;0,%f;3,2;]", ESC(name), yextra + 0.7))
+
+			local armor_def = armor.def[name]
+
+			fs("label", 3.65, yextra + 1.55, fmt("%s: %s", ES"Level", armor_def.level))
+			fs("label", 3.65, yextra + 2.05, fmt("%s: %s", ES"Heal", armor_def.heal))
+		else
+			not_installed("3d_armor")
+		end
+
+	elseif data.subcat == 3 then
+		if __skinsdb then
+			local _skins = skins.get_skinlist_for_player(name)
+			local sks = {}
+
+			for _, skin in ipairs(_skins) do
+				sks[#sks + 1] = skin.name
+			end
+
+			sks = concat(sks, ","):gsub(";", "")
+
+			fs(fmt("dropdown[0,%f;4,0.6;skins;%s;%u;true]", yextra + 0.7, sks, data.skin_id or 1))
+		else
+			not_installed("skinsdb")
+		end
+
+	elseif data.subcat == 4 then
+		if __awards then
+			yextra = yextra + 0.8
+			get_award_list(data, fs, ctn_len, yextra, award_list, awards_unlocked, award_list_nb)
+		else
+			not_installed("awards")
+		end
+
+	elseif data.subcat == 5 then
+		local waypoints = {}
+
+		for _, v in ipairs(data.waypoints or {}) do
+			insert(waypoints, v.name)
+		end
+
+		fs(fmt("dropdown[0,%f;4.2,0.6;waypoints;%s;%u;true]",
+			yextra + 0.7, concat(waypoints, ","), data.waypoint_id))
+
+		local no_waypoint = not data.waypoints or #data.waypoints == 0
+
+		if not no_waypoint then
+			fs("image_button", 4.4, yextra + 0.75, 0.5, 0.5, "", "waypoint_delete", "")
+			fs(fmt("tooltip[waypoint_delete;%s]", ES"Delete waypoint"))
+
+			if core.is_creative_enabled(name) then
+				fs("image_button",
+					no_waypoint and 4.4 or 5.1, yextra + 0.77, 0.5, 0.5,
+					"", "waypoint_teleport", "")
+
+				fs(fmt("tooltip[waypoint_teleport;%s]", ES"Teleport to waypoint"))
+			end
+		end
+
+		fs(fmt("box[0,%f;4.2,0.6;#bababa25]", yextra + 1.5))
+		fs(fmt("field[0.1,%f;4.1,0.6;waypoint_name;;]", yextra + 1.5))
+		fs("image_button", 4.4, yextra + 1.55, 0.5, 0.5, "", "waypoint_add", "")
+		fs(fmt("tooltip[waypoint_add;%s]", ES"Add waypoint"))
+	end
+end
+
+local function get_tabs_fs(player, data, fs, full_height)
+	local tab_len, tab_hgh, c, over = 3, 0.5, 0
+	local _tabs = copy(tabs)
+
+	for i, def in ipairs(tabs) do
+		if def.access and not def.access(player, data) then
+			remove(_tabs, i)
+		end
+	end
+
+	local shift = min(3, #_tabs)
+
+	for i, def in ipairs(_tabs) do
+		if not over and c > 2 then
+			over = true
+			c = 0
+		end
+
+		local btm = i <= 3
+
+		if not btm then
+			shift = #_tabs - 3
+		end
+
+		local selected = i == data.current_tab
+
+		fs(fmt([[style_type[image_button;fgimg=%s;fgimg_hovered=%s;noclip=true;
+			font_size=16;textcolor=%s;content_offset=0;sound=i3_tab] ]],
+		selected and (btm and PNG.tab_hover or PNG.tab_hover_top) or (btm and PNG.tab or PNG.tab_top),
+		btm and PNG.tab_hover or PNG.tab_hover_top, selected and "#fff" or "#ddd"))
+
+		local X = (data.xoffset / 2) + (c * (tab_len + 0.1)) - ((tab_len + 0.05) * (shift / 2))
+		local Y = btm and full_height or -tab_hgh
+
+		fs("style_type[image_button:hovered;textcolor=#fff]")
+		fs("image_button", X, Y, tab_len, tab_hgh, "", fmt("tab_%s", def.name), ESC(def.description))
+
+		if def.image and def.image ~= "" then
+			local desc = translate(data.lang_code, def.description)
+
+			fs("style_type[image;noclip=true]")
+			fs("image", X + (tab_len / 2) - ((#desc * 0.1) / 2) - 0.55,
+				Y + 0.05, 0.35, 0.35, fmt("%s^\\[resize:16x16", def.image))
+		end
+
+		c = c + 1
+	end
+end
+
+local function get_debug_grid(data, fs, full_height)
+	local spacing = 0.2
+
+	for x = 0, data.xoffset, spacing do
+		fs("box", x, 0, 0.01, full_height, "#ff0")
+	end
+
+	for y = 0, full_height, spacing do
+		fs("box", 0, y, data.xoffset, 0.01, "#ff0")
+	end
+
+	fs("box", data.xoffset / 2, 0, 0.01, full_height, "#f00")
+	fs("box", 0, full_height / 2, data.xoffset, 0.01, "#f00")
+end
+
+local function make_fs(player, data)
+	--local start = os.clock()
+
+	local fs = setmetatable({}, {
+		__call = function(t, ...)
+			local args = {...}
+			local elem = fs_elements[args[1]]
+
+			if elem then
+				t[#t + 1] = fmt(elem, select(2, ...))
+			else
+				t[#t + 1] = concat(args)
+			end
+		end
+	})
+
+	data.xoffset = ROWS + 1.23
+	local full_height = LINES + 1.73
+
+	local tab = tabs[data.current_tab]
+	local hide_panels = tab and tab.hide_panels and tab.hide_panels(player, data)
+	local show_panels = data.query_item and tab and not hide_panels
+
+	fs(fmt("formspec_version[%u]size[%f,%f]no_prepend[]bgcolor[#0000]",
+		MIN_FORMSPEC_VERSION, data.xoffset + (show_panels and 8 or 0), full_height), styles)
+
+	fs("bg9", 0, 0, data.xoffset, full_height, PNG.bg_full, 10)
+
+	if tab then
+		tab.formspec(player, data, fs)
+	end
+
+	if show_panels then
+		get_panels(player, data, fs)
+	end
+
+	get_tabs_fs(player, data, fs, full_height)
+
+	--get_debug_grid(data, fs, full_height)
+	--print("make_fs()", fmt("%.2f ms", (os.clock() - start) * 1000))
+
+	return concat(fs)
+end
+
+function i3.set_fs(player, _fs)
+	local name = player:get_player_name()
+	local data = pdata[name]
+	if not data then return end
+
+	local fs = fmt("%s%s", make_fs(player, data), _fs or "")
+	player:set_inventory_formspec(fs)
+end
+
+local set_fs = i3.set_fs
+
+function i3.new_tab(def)
+	if not is_table(def) or not next(def) then
+		return err "i3.new_tab: tab definition missing"
+	end
+
+	if not true_str(def.name) then
+		return err "i3.new_tab: tab name missing"
+	end
+
+	if not true_str(def.description) then
+		return err "i3.new_tab: description missing"
+	end
+
+	if #tabs == 6 then
+		return err(fmt("i3.new_tab: cannot add '%s' tab. Limit reached (6).", def.name))
+	end
+
+	tabs[#tabs + 1] = def
+end
+
+function i3.get_tabs()
+	return tabs
+end
+
+function i3.delete_tab(tabname)
+	if not true_str(tabname) then
+		return err "i3.delete_tab: tab name missing"
+	end
+
+	for i, def in ipairs(tabs) do
+		if tabname == def.name then
+			remove(tabs, i)
+		end
+	end
+end
+
+function i3.set_tab(player, tabname)
+	local name = player:get_player_name()
+	local data = pdata[name]
+
+	if not tabname or tabname == "" then
+		data.current_tab = 0
+		return
+	end
+
+	local found
+
+	for i, def in ipairs(tabs) do
+		if not found and def.name == tabname then
+			data.current_tab = i
+			found = true
+		end
+	end
+
+	if not found then
+		return err(fmt("i3.set_tab: tab name '%s' does not exist", tabname))
+	end
+end
+
+local set_tab = i3.set_tab
+
+function i3.override_tab(tabname, newdef)
+	if not is_table(newdef) or not next(newdef) then
+		return err "i3.override_tab: tab definition missing"
+	end
+
+	if not true_str(newdef.name) then
+		return err "i3.override_tab: tab name missing"
+	end
+
+	if not true_str(newdef.description) then
+		return err "i3.override_tab: description missing"
+	end
+
+	for i, def in ipairs(tabs) do
+		if def.name == tabname then
+			tabs[i] = newdef
+		end
+	end
+end
+
+local function init_data(player, info)
+	local name = player:get_player_name()
+
+	pdata[name] = {
+		filter        = "",
+		pagenum       = 1,
+		items         = init_items,
+		items_raw     = init_items,
+		favs          = {},
+		export_counts = {},
+		current_tab   = 1,
+		subcat        = 1,
+		waypoint_id   = 1,
+		lang_code     = get_lang_code(info),
+	}
+
+	local data = pdata[name]
+	local meta = player:get_meta()
+
+	for i = 1, #META_SAVES do
+		local recover = META_SAVES[i]
+		data[recover] = dslz(meta:get_string(recover))
+	end
+
+	after(0, set_fs, player)
+end
+
+local function reset_data(data)
+	data.filter      = ""
+	data.pagenum     = 1
+	data.rnum        = 1
+	data.unum        = 1
+	data.scrbar_rcp  = 1
+	data.scrbar_usg  = 1
+	data.query_item  = nil
+	data.recipes     = nil
+	data.usages      = nil
+	data.export_rcp  = nil
+	data.export_usg  = nil
+	data.items       = data.items_raw
+end
+
+local function panel_fields(player, data, fields)
+	local name = player:get_player_name()
+	local sb_rcp, sb_usg = fields.scrbar_rcp, fields.scrbar_usg
+
+	if fields.prev_recipe or fields.next_recipe then
+		local num = data.rnum + (fields.prev_recipe and -1 or 1)
+		data.rnum = data.recipes[num] and num or (fields.prev_recipe and #data.recipes or 1)
+		data.export_rcp = nil
+		data.scrbar_rcp = 1
+
+	elseif fields.prev_usage or fields.next_usage then
+		local num = data.unum + (fields.prev_usage and -1 or 1)
+		data.unum = data.usages[num] and num or (fields.prev_usage and #data.usages or 1)
+		data.export_usg = nil
+		data.scrbar_usg = 1
+
+	elseif fields.fav then
+		local fav, i = is_fav(data.favs, data.query_item)
+		local total = #data.favs
+
+		if total < MAX_FAVS and not fav then
+			data.favs[total + 1] = data.query_item
+		elseif fav then
+			remove(data.favs, i)
+		end
+
+	elseif fields.export_rcp or fields.export_usg then
+		if fields.export_rcp then
+			data.export_rcp = not data.export_rcp
+
+			if not data.export_rcp then
+				data.scrbar_rcp = 1
+			end
+		else
+			data.export_usg = not data.export_usg
+
+			if not data.export_usg then
+				data.scrbar_usg = 1
+			end
+		end
+
+	elseif (sb_rcp and sub(sb_rcp, 1, 3) == "CHG") or (sb_usg and sub(sb_usg, 1, 3) == "CHG") then
+		data.scrbar_rcp = sb_rcp and tonum(match(sb_rcp, "%d+"))
+		data.scrbar_usg = sb_usg and tonum(match(sb_usg, "%d+"))
+
+	elseif fields.craft_rcp or fields.craft_usg then
+		craft_stack(player, name, data, fields.craft_rcp)
+	else
+		select_item(player, name, data, fields)
+	end
+end
+
+local function get_inv_slots(data, fs)
+	local inv_x, inv_y = 0.22, 6.6
+	local width, size, spacing = HOTBAR_COUNT, 1, 0.1
+	local bag = data.bag_size
+
+	fs("style_type[box;colors=#77777710,#77777710,#777,#777]")
+
+	for i = 0, HOTBAR_COUNT - 1 do
+		fs("box", i * size + inv_x + (i * spacing), inv_y, size, size, "")
+	end
+
+	fs(fmt("style_type[list;size=%f;spacing=%f]", size, spacing),
+	   fmt("list[current_player;main;%f,%f;%u,1;]", inv_x, inv_y, HOTBAR_COUNT))
+
+	if bag then
+		if bag == "small" then
+			width, size = 10, 0.892
+		elseif bag == "medium" then
+			width, size = 11, 0.8
+		elseif bag == "large" then
+			width, size = 12, 0.726
+		end
+	end
+
+	fs(fmt("style_type[list;size=%f;spacing=%f]", size, spacing),
+	   fmt("list[current_player;main;%f,%f;%u,%u;%u]", inv_x, inv_y + 1.15,
+		width, (bag and BAG_SIZES[data.bag_size] or INV_SIZE) / width, HOTBAR_COUNT),
+	   "style_type[list;size=1;spacing=0.15]")
+
+	fs("listring[current_player;craft]listring[current_player;main]")
+end
+
+local function get_inventory_fs(player, data, fs)
+	fs("listcolors[#bababa50;#bababa99]")
+
+	get_inv_slots(data, fs)
+
+	local props = player:get_properties()
+	local name = player:get_player_name()
+
+	local ctn_len, ctn_hgt = 5.7, 6
+	local yoffset = 0
+
+	if props.mesh ~= "" then
+		local anim = player:get_local_animation()
+		--fs("style[player_model;bgcolor=black]")
+		local armor_skin = __3darmor or __skinsdb
+
+		fs("model", 0.2, 0.2, armor_skin and 4 or 3.4, armor_skin and ctn_hgt or 5.8,
+			"player_model",
+			props.mesh, concat(props.textures, ","), "0,-150", "false", "false",
+			fmt("%u,%u", anim.x, anim.y))
+	else
+		local size = 2.5
+		fs("image", 0.7, 0.2, size, size * props.visual_size.y, props.textures[1])
+	end
+
+	local award_list, award_list_nb
+	local awards_unlocked = 0
+	local max_val = 15
+
+	if __3darmor and data.subcat == 2 then
+		if (data.scrbar_inv or 0) >= max_val then
+			data.scrbar_inv = data.scrbar_inv + 10
+		end
+
+		max_val = max_val + 10
+
+	elseif __awards and data.subcat == 4 then
+		award_list = awards.get_award_states(name)
+		award_list_nb = #award_list
+
+		for i = 1, award_list_nb do
+			local award = award_list[i]
+
+			if award.unlocked then
+				awards_unlocked = awards_unlocked + 1
+			end
+		end
+
+		max_val = max_val + (award_list_nb * 13)
+
+	elseif data.subcat == 5 then
+		max_val = max_val + 3
+	end
+
+	fs(fmt([[
+		scrollbaroptions[arrows=hide;thumbsize=%u;max=%u]
+		scrollbar[%f,0.2;0.2,%f;vertical;scrbar_inv;%u]
+		scrollbaroptions[arrows=default;thumbsize=0;max=1000]
+	]],
+	(max_val * 4) / 15, max_val, 9.8, ctn_hgt, data.scrbar_inv or 0))
+
+	fs(fmt("scroll_container[3.9,0.2;%f,%f;scrbar_inv;vertical]", ctn_len, ctn_hgt))
+
+	get_ctn_content(fs, data, player, yoffset, ctn_len, award_list, awards_unlocked, award_list_nb)
+
+	fs("scroll_container_end[]")
+
+	local btn = {
+		{"trash", ES"Trash all items"},
+		{"sort_az", ES"Sort items (A-Z)"},
+		{"sort_za", ES"Sort items (Z-A)"},
+		{"compress", ES"Compress items"},
+	}
+
+	for i, v in ipairs(btn) do
+		local btn_name, tooltip = unpack(v)
+
+		fs(fmt("style[%s;fgimg=%s;fgimg_hovered=%s;content_offset=0]",
+			btn_name, PNG[btn_name], PNG[fmt("%s_hover", btn_name)]))
+
+		fs("image_button", i + 3.447 - (i * 0.4), 11.13, 0.35, 0.35, "", btn_name, "")
+		fs(fmt("tooltip[%s;%s]", btn_name, tooltip))
+	end
+end
+
+local function get_items_fs(_, data, fs)
+	fs("box[0.2,0.2;4.55,0.6;#bababa25]", "set_focus[filter]",
+	   fmt("field[0.3,0.2;3.45,0.6;filter;;%s]", ESC(data.filter)),
+	   "field_close_on_enter[filter;false]")
+
+	fs("image_button", 3.75, 0.35, 0.3, 0.3, "", "cancel", "")
+	fs("image_button", 4.25, 0.32, 0.35, 0.35, "", "search", "")
+	fs("image_button", data.xoffset - 2.73, 0.3, 0.35, 0.35, "", "prev_page", "")
+	fs("image_button", data.xoffset - 0.55, 0.3, 0.35, 0.35, "", "next_page", "")
+
+	data.pagemax = max(1, ceil(#data.items / IPP))
+
+	fs("button", data.xoffset - 2.4, 0.14, 1.88, 0.7, "pagenum",
+		fmt("%s / %u", clr("#ff0", data.pagenum), data.pagemax))
+
+	if #data.items == 0 then
+		local lbl = ES"No item to show"
+
+		if next(recipe_filters) and #init_items > 0 and data.filter == "" then
+			lbl = ES"Collect items to reveal more recipes"
+		end
+
+		fs("button", 0, 3, data.xoffset, 1, "no_item", lbl)
+	end
+
+	local first_item = (data.pagenum - 1) * IPP
+
+	for i = first_item, first_item + IPP - 1 do
+		local item = data.items[i + 1]
+		if not item then break end
+
+		local X = i % ROWS
+		X = X + (X * 0.1) + 0.2
+
+		local Y = floor((i % IPP - X) / ROWS + 1)
+		Y = Y + (Y * 0.06) + 1
+
+		if data.query_item == item then
+			fs("image", X, Y, 1, 1, PNG.slot)
+		end
+
+		fs[#fs + 1] = fmt("item_image_button", X, Y, 1, 1, item, fmt("%s_inv", item), "")
+	end
+end
+
+i3.new_tab {
+	name = "inventory",
+	description = S"Inventory",
+	formspec = get_inventory_fs,
+
+	fields = function(player, data, fields)
+		local name = player:get_player_name()
+		local sb_inv = fields.scrbar_inv
+
+		if not core.is_creative_enabled(name) then
+			panel_fields(player, data, fields)
+		end
+
+		if fields.skins and data.skin_id ~= tonum(fields.skins) then
+			data.skin_id = tonum(fields.skins)
+			local _skins = skins.get_skinlist_for_player(name)
+			skins.set_player_skin(player, _skins[data.skin_id])
+		end
+
+		if fields.waypoints then
+			data.waypoint_id = tonumber(fields.waypoints)
+		end
+
+		for field in pairs(fields) do
+			if sub(field, 1, 4) == "btn_" then
+				data.subcat = indexof(SUBCAT, sub(field, 5))
+				break
+			end
+		end
+
+		if fields.trash then
+			local inv = player:get_inventory()
+			inv:set_list("main", {})
+			inv:set_list("craft", {})
+
+		elseif fields.compress then
+			compress_items(player)
+
+		elseif fields.sort_az or fields.sort_za then
+			sort_itemlist(player, fields.sort_az)
+
+		elseif sb_inv and sub(sb_inv, 1, 3) == "CHG" then
+			data.scrbar_inv = tonum(match(sb_inv, "%d+"))
+			return
+
+		elseif fields.waypoint_add then
+			data.waypoints = data.waypoints or {}
+			local waypoint = fields.waypoint_name
+			local last = #data.waypoints + 1
+			data.waypoint_id = last
+
+			if fields.waypoint_name == "" then
+				waypoint = fmt("Waypoint %u", last)
+			end
+
+			local color = random(0xffffff)
+			local pos = player:get_pos()
+
+			local id = player:hud_add {
+				hud_elem_type = "waypoint",
+				name = waypoint,
+				text = " m",
+				world_pos = pos,
+				number = color,
+				z_index = -300,
+			}
+
+			insert(data.waypoints, {name = waypoint, pos = pos, color = color, id = id})
+
+		elseif fields.waypoint_delete then
+			local waypoint = data.waypoints[data.waypoint_id]
+			player:hud_remove(waypoint.id)
+			remove(data.waypoints, data.waypoint_id)
+			data.waypoint_id = data.waypoint_id + (data.waypoint_id == 1 and 0 or -1)
+
+		elseif fields.waypoint_teleport then
+			local waypoint = data.waypoints[data.waypoint_id]
+			local pos = waypoint.pos
+			pos.y = pos.y + 0.5
+
+			player:set_pos(pos)
+			msg(name, fmt("Teleported to %s", clr("#ff0", waypoint.name)))
+		end
+
+		return set_fs(player)
+	end,
+
+	hide_panels = function(player)
+		local name = player:get_player_name()
+		return core.is_creative_enabled(name)
+	end,
+}
+
+i3.new_tab {
+	name = "items",
+	description = S"Items",
+	formspec = get_items_fs,
+
+	fields = function(player, data, fields)
+		panel_fields(player, data, fields)
+
+		if fields.cancel then
+			reset_data(data)
+
+		elseif fields.key_enter_field == "filter" or fields.search then
+			if fields.filter == "" then
+				reset_data(data)
+				return set_fs(player)
+			end
+
+			local str = lower(fields.filter)
+			if data.filter == str then return end
+
+			data.filter = str
+			data.pagenum = 1
+
+			search(data)
+
+		elseif fields.prev_page or fields.next_page then
+			if data.pagemax == 1 then return end
+			data.pagenum = data.pagenum - (fields.prev_page and 1 or -1)
+
+			if data.pagenum > data.pagemax then
+				data.pagenum = 1
+			elseif data.pagenum == 0 then
+				data.pagenum = data.pagemax
+			end
+		end
+
+		return set_fs(player)
+	end,
+}
+
+local trash = create_inventory("i3_trash", {
+	allow_put = function(_, _, _, stack)
+		return stack:get_count()
+	end,
+	on_put = function(inv, listname, _, _, player)
+		inv:set_list(listname, {})
+
+		local name = player:get_player_name()
+
+		if not core.is_creative_enabled(name) then
+			set_fs(player)
+		end
+	end,
+})
+
+trash:set_size("main", 1)
+
+core.register_on_player_inventory_action(function(player, _, _, info)
+	local name = player:get_player_name()
+
+	if not core.is_creative_enabled(name) and
+	  ((info.from_list == "main"  and info.to_list == "craft") or
+	   (info.from_list == "craft" and info.to_list == "main")  or
+	   (info.from_list == "craftresult" and info.to_list == "main")) then
+		set_fs(player)
+	end
+end)
+
+if rawget(_G, "armor") then
+	__3darmor = true
+	armor:register_on_update(set_fs)
+end
+
+if rawget(_G, "skins") then
+	__skinsdb = true
+	insert(META_SAVES, "skin_id")
+end
+
+if rawget(_G, "awards") then
+	__awards = true
+
+	core.register_on_craft(function(_, player)
+		set_fs(player)
+	end)
+
+	core.register_on_dignode(function(_, _, player)
+		set_fs(player)
+	end)
+
+	core.register_on_placenode(function(_, _, player)
+		set_fs(player)
+	end)
+
+	core.register_on_chat_message(function(name)
+		local player = core.get_player_by_name(name)
+		set_fs(player)
+	end)
+
+	core.register_on_dieplayer(set_fs)
+end
+
+core.register_on_chatcommand(function(name)
+	local player = core.get_player_by_name(name)
+	after(0, set_fs, player)
+end)
+
+i3.register_craft_type("digging", {
+	description = ES"Digging",
+	icon = "i3_steelpick.png",
+})
+
+i3.register_craft_type("digging_chance", {
+	description = ES"Digging (by chance)",
+	icon = "i3_mesepick.png",
+})
+
+i3.add_search_filter("groups", function(item, groups)
+	local def = reg_items[item]
+	local has_groups = true
+
+	for _, group in ipairs(groups) do
+		if not def.groups[group] then
+			has_groups = nil
+			break
+		end
+	end
+
+	return has_groups
+end)
+
+i3.add_search_filter("types", function(item, drawtypes)
+	local t = {}
+
+	for i, dt in ipairs(drawtypes) do
+		t[i] = (dt == "node" and reg_nodes[item] and 1) or
+		       (dt == "item" and reg_craftitems[item] and 1) or
+		       (dt == "tool" and reg_tools[item] and 1) or nil
+	end
+
+	return #t > 0
+end)
+
+--[[	As `core.get_craft_recipe` and `core.get_all_craft_recipes` do not
+	return the fuel, replacements and toolrepair recipes, we have to
+	override `core.register_craft` and do some reverse engineering.
+	See engine's issues #4901, #5745 and #8920.	]]
+
+local old_register_craft = core.register_craft
+local rcp_num = {}
+
+core.register_craft = function(def)
+	old_register_craft(def)
+
+	if def.type == "toolrepair" then
+		toolrepair = def.additional_wear * -100
+	end
+
+	local output = def.output or (true_str(def.recipe) and def.recipe) or nil
+	if not output then return end
+	output = {match(output, "%S+")}
+
+	local groups
+
+	if is_group(output[1]) then
+		groups = extract_groups(output[1])
+		output = groups_to_items(groups, true)
+	end
+
+	for i = 1, #output do
+		local item = output[i]
+		rcp_num[item] = (rcp_num[item] or 0) + 1
+
+		if def.replacements then
+			if def.type == "fuel" then
+				replacements.fuel[item] = def.replacements
+			else
+				replacements[item] = replacements[item] or {}
+				replacements[item][rcp_num[item]] = def.replacements
+			end
+		end
+	end
+end
+
+local old_clear_craft = core.clear_craft
+
+core.clear_craft = function(def)
+	old_clear_craft(def)
+
+	if true_str(def) then
+		return -- TODO
+	elseif is_table(def) then
+		return -- TODO
+	end
+end
+
+local function resolve_aliases(hash)
+	for oldname, newname in pairs(reg_aliases) do
+		cache_recipes(oldname)
+		local recipes = recipes_cache[oldname]
+
+		if recipes then
+			if not recipes_cache[newname] then
+				recipes_cache[newname] = {}
+			end
+
+			local similar
+
+			for i = 1, #recipes_cache[oldname] do
+				local rcp_old = recipes_cache[oldname][i]
+
+				for j = 1, #recipes_cache[newname] do
+					local rcp_new = copy(recipes_cache[newname][j])
+					rcp_new.output = oldname
+
+					if table_eq(rcp_old, rcp_new) then
+						similar = true
+						break
+					end
+				end
+
+				if not similar then
+					insert(recipes_cache[newname], rcp_old)
+				end
+			end
+		end
+
+		if newname ~= "" and recipes_cache[oldname] and not hash[newname] then
+			init_items[#init_items + 1] = newname
+		end
+	end
+end
+
+local function get_init_items()
+	local _select, _preselect = {}, {}
+
+	for name, def in pairs(reg_items) do
+		if name ~= "" and show_item(def) then
+			cache_drops(name, def.drop)
+			cache_fuel(name)
+			cache_recipes(name)
+
+			_preselect[name] = true
+		end
+	end
+
+	for name in pairs(_preselect) do
+		cache_usages(name)
+
+		init_items[#init_items + 1] = name
+		_select[name] = true
+	end
+
+	resolve_aliases(_select)
+	sort(init_items)
+
+	if http and true_str(i3.export_url) then
+		local post_data = {
+			recipes = recipes_cache,
+			usages  = usages_cache,
+		}
+
+		http.fetch_async{
+			url = i3.export_url,
+			post_data = write_json(post_data),
+		}
+	end
+end
+
+on_mods_loaded(function()
+	get_init_items()
+
+	sfinv = rawget(_G, "sfinv")
+
+	if sfinv then
+		sfinv.enabled = false
+	end
+
+	unified_inventory = rawget(_G, "unified_inventory")
+
+	if unified_inventory then
+		old_unified_inventory_fn = unified_inventory.set_inventory_formspec
+		function unified_inventory.set_inventory_formspec() return end
+	end
+end)
+
+local function init_backpack(player)
+	local name = player:get_player_name()
+	local data = pdata[name]
+
+	local player_inv = player:get_inventory()
+	player_inv:set_size("main", INV_SIZE)
+
+	data.bag = create_inventory(fmt("%s_backpack", name), {
+		allow_put = function(inv, listname, _, stack)
+			local empty = inv:get_stack(listname, 1):is_empty()
+
+			if empty and sub(stack:get_name(), 1, 7) == "i3:bag_" then
+				return 1
+			end
+
+			return 0
+		end,
+
+		on_put = function(_, _, _, stack)
+			data.bag_size = match(stack:get_name(), "_(%w+)$")
+			player_inv:set_size("main", BAG_SIZES[data.bag_size])
+			set_fs(player)
+		end,
+
+		on_take = function()
+			for i = INV_SIZE + 1, BAG_SIZES[data.bag_size] do
+				local stack = player_inv:get_stack("main", i)
+
+				if not stack:is_empty() then
+					spawn_item(player, stack)
+				end
+			end
+
+			data.bag_size = nil
+			player_inv:set_size("main", INV_SIZE)
+
+			set_fs(player)
+		end,
+	})
+
+	data.bag:set_size("main", 1)
+
+	if data.bag_size then
+		data.bag:set_stack("main", 1, fmt("i3:bag_%s", data.bag_size))
+		player_inv:set_size("main", BAG_SIZES[data.bag_size])
+	end
+end
+
+local function init_waypoints(player)
+	local name = player:get_player_name()
+	local data = pdata[name]
+
+	for _, v in ipairs(data.waypoints or {}) do
+		local id = player:hud_add {
+			hud_elem_type = "waypoint",
+			name = v.name,
+			text = " m",
+			world_pos = v.pos,
+			number = v.color,
+			z_index = -300,
+		}
+
+		v.id = id
+	end
+end
+
+on_joinplayer(function(player)
+	local name = player:get_player_name()
+	local info = get_player_info(name)
+
+	if get_formspec_version(info) < MIN_FORMSPEC_VERSION then
+		if sfinv then
+			sfinv.enabled = true
+		end
+
+		if unified_inventory then
+			unified_inventory.set_inventory_formspec = old_unified_inventory_fn
+
+			if sfinv then
+				sfinv.enabled = false
+			end
+		end
+
+		return outdated(name)
+	end
+
+	init_data(player, info)
+	init_backpack(player)
+	init_waypoints(player)
+
+	after(0, function()
+		player:hud_set_hotbar_itemcount(HOTBAR_COUNT)
+		player:hud_set_hotbar_image(PNG.hotbar)
+	end)
+end)
+
+core.register_on_dieplayer(function(player)
+	local name = player:get_player_name()
+	local data = pdata[name]
+	if not data then return end
+
+	data.bag_size = nil
+	data.bag:set_list("main", {})
+
+	local inv = player:get_inventory()
+	inv:set_size("main", INV_SIZE)
+
+	set_fs(player)
+end)
+
+on_leaveplayer(function(player)
+	save_meta(player, META_SAVES)
+
+	local name = player:get_player_name()
+	pdata[name] = nil
+end)
+
+on_shutdown(function()
+	local players = get_players()
+
+	for i = 1, #players do
+		local player = players[i]
+		save_meta(player, META_SAVES)
+	end
+end)
+
+on_receive_fields(function(player, formname, fields)
+	if formname ~= "" then
+		return false
+	end
+
+	local name = player:get_player_name()
+	local data = pdata[name]
+	if not data then return end
+
+	for f in pairs(fields) do
+		if sub(f, 1, 4) == "tab_" then
+			local tabname = sub(f, 5)
+			set_tab(player, tabname)
+			break
+		end
+	end
+
+	local tab = tabs[data.current_tab]
+
+	if tab and tab.fields then
+		return true, tab.fields(player, data, fields)
+	end
+
+	return true, set_fs(player)
+end)
+
+core.register_on_player_hpchange(function(player, hpchange)
+	local name = player:get_player_name()
+	local data = pdata[name]
+	if not data then return end
+
+	local hp_max = player:get_properties().hp_max
+	data.hp = min(hp_max, player:get_hp() + hpchange)
+
+	set_fs(player)
+end)
+
+if progressive_mode then
+	local function item_in_inv(item, inv_items)
+		local inv_items_size = #inv_items
+
+		if is_group(item) then
+			local groups = extract_groups(item)
+			for i = 1, inv_items_size do
+				local def = reg_items[inv_items[i]]
+
+				if def then
+					if item_has_groups(def.groups, groups) then
+						return true
+					end
+				end
+			end
+		else
+			for i = 1, inv_items_size do
+				if inv_items[i] == item then
+					return true
+				end
+			end
+		end
+	end
+
+	local function recipe_in_inv(rcp, inv_items)
+		for _, item in pairs(rcp.items) do
+			if not item_in_inv(item, inv_items) then return end
+		end
+
+		return true
+	end
+
+	local function progressive_filter(recipes, player)
+		if not recipes then
+			return {}
+		end
+
+		local name = player:get_player_name()
+		local data = pdata[name]
+
+		if #data.inv_items == 0 then
+			return {}
+		end
+
+		local filtered, c = {}, 0
+
+		for i = 1, #recipes do
+			local recipe = recipes[i]
+			if recipe_in_inv(recipe, data.inv_items) then
+				c = c + 1
+				filtered[c] = recipe
+			end
+		end
+
+		return filtered
+	end
+
+	local item_lists = {"main", "craft", "craftpreview"}
+
+	local function get_inv_items(player)
+		local inv = player:get_inventory()
+		local stacks = {}
+
+		for i = 1, #item_lists do
+			local list = inv:get_list(item_lists[i])
+			table_merge(stacks, list)
+		end
+
+		local inv_items, c = {}, 0
+
+		for i = 1, #stacks do
+			local stack = stacks[i]
+			if not stack:is_empty() then
+				local name = stack:get_name()
+				if reg_items[name] then
+					c = c + 1
+					inv_items[c] = name
+				end
+			end
+		end
+
+		return inv_items
+	end
+
+	local function init_hud(player, data)
+		data.hud = {
+			bg = player:hud_add {
+				hud_elem_type = "image",
+				position      = {x = 0.78, y = 1},
+				alignment     = {x = 1,    y = 1},
+				scale         = {x = 370,  y = 112},
+				text          = PNG.bg,
+				z_index       = 0xDEAD,
+			},
+
+			book = player:hud_add {
+				hud_elem_type = "image",
+				position      = {x = 0.79, y = 1.02},
+				alignment     = {x = 1,    y = 1},
+				scale         = {x = 4,    y = 4},
+				text          = PNG.book,
+				z_index       = 0xDEAD,
+			},
+
+			text = player:hud_add {
+				hud_elem_type = "text",
+				position      = {x = 0.84, y = 1.04},
+				alignment     = {x = 1,    y = 1},
+				number        = 0xffffff,
+				text          = "",
+				z_index       = 0xDEAD,
+			},
+		}
+	end
+
+	local function show_hud_success(player, data)
+		-- It'd better to have an engine function `hud_move` to only need
+		-- 2 calls for the notification's back and forth.
+
+		local hud_info_bg = player:hud_get(data.hud.bg)
+		local dt = 0.016
+
+		if hud_info_bg.position.y <= 0.9 then
+			data.show_hud = false
+			data.hud_timer = (data.hud_timer or 0) + dt
+		end
+
+		if data.show_hud then
+			for _, def in pairs(data.hud) do
+				local hud_info = player:hud_get(def)
+
+				player:hud_change(def, "position", {
+					x = hud_info.position.x,
+					y = hud_info.position.y - (dt / 5)
+				})
+			end
+
+			player:hud_change(data.hud.text, "text",
+				S("@1 new recipe(s) discovered!", data.discovered))
+
+		elseif data.show_hud == false then
+			if data.hud_timer >= HUD_TIMER_MAX then
+				for _, def in pairs(data.hud) do
+					local hud_info = player:hud_get(def)
+
+					player:hud_change(def, "position", {
+						x = hud_info.position.x,
+						y = hud_info.position.y + (dt / 5)
+					})
+				end
+
+				if hud_info_bg.position.y >= 1 then
+					data.show_hud = nil
+					data.hud_timer = nil
+				end
+			end
+		end
+	end
+
+	-- Workaround. Need an engine call to detect when the contents of
+	-- the player inventory changed, instead.
+	local function poll_new_items()
+		local players = get_players()
+		for i = 1, #players do
+			local player = players[i]
+			local name = player:get_player_name()
+			local data = pdata[name]
+
+			local inv_items = get_inv_items(player)
+			local diff = array_diff(inv_items, data.inv_items)
+
+			if #diff > 0 then
+				data.inv_items = table_merge(diff, data.inv_items)
+				local oldknown = data.known_recipes or 0
+				local items = get_filtered_items(player, data)
+				data.discovered = data.known_recipes - oldknown
+
+				if data.show_hud == nil and data.discovered > 0 then
+					data.show_hud = true
+				end
+
+				data.items_raw = items
+				search(data)
+				set_fs(player)
+			end
+		end
+
+		after(POLL_FREQ, poll_new_items)
+	end
+
+	poll_new_items()
+
+	globalstep(function()
+		local players = get_players()
+		for i = 1, #players do
+			local player = players[i]
+			local name = player:get_player_name()
+			local data = pdata[name]
+
+			if data.show_hud ~= nil and singleplayer then
+				show_hud_success(player, data)
+			end
+		end
+	end)
+
+	i3.add_recipe_filter("Default progressive filter", progressive_filter)
+
+	on_joinplayer(function(player)
+		local name = player:get_player_name()
+		local meta = player:get_meta()
+		local data = pdata[name]
+
+		data.inv_items = dslz(meta:get_string "inv_items") or {}
+		data.known_recipes = dslz(meta:get_string "known_recipes") or 0
+
+		local items = get_filtered_items(player, data)
+		data.items_raw = items
+		search(data)
+
+		if singleplayer then
+			init_hud(player, data)
+		end
+	end)
+
+	table_merge(META_SAVES, {"inv_items", "known_recipes"})
+end
+
+local bag_recipes = {
+	small = {
+		{"", "farming:string", ""},
+		{"group:wool", "group:wool", "group:wool"},
+		{"group:wool", "group:wool", "group:wool"},
+	},
+	medium = {
+		{"farming:string", "i3:bag_small", "farming:string"},
+		{"farming:string", "i3:bag_small", "farming:string"},
+	},
+	large = {
+		{"farming:string", "i3:bag_medium", "farming:string"},
+		{"farming:string", "i3:bag_medium", "farming:string"},
+	},
+}
+
+for size, rcp in pairs(bag_recipes) do
+	local bagname = fmt("i3:bag_%s", size)
+
+	core.register_craftitem(bagname, {
+		description = fmt("%s Backpack", size:gsub("^%l", upper)),
+		inventory_image = fmt("i3_bag_%s.png", size),
+		stack_max = 1,
+	})
+
+	core.register_craft {output = bagname, recipe = rcp}
+	core.register_craft {type = "fuel", recipe = bagname, burntime = 3}
+end
+
+--dofile(core.get_modpath("i3") .. "/test_tabs.lua")
+--dofile(core.get_modpath("i3") .. "/test_custom_recipes.lua")
diff --git a/mods/gui/i3/test_custom_recipes.lua b/mods/gui/i3/test_custom_recipes.lua
index 68c2f41..9489f52 100644
--- a/mods/gui/i3/test_custom_recipes.lua
+++ b/mods/gui/i3/test_custom_recipes.lua
@@ -1,6 +1,15 @@
+minetest.register_craft({
+	output = minetest.itemstring_with_palette("default:wood", 3),
+	type = "shapeless",
+	recipe = {
+		"default:wood",
+		"dye:red",
+	},
+})
+
 i3.register_craft({
 	result = "default:ladder_wood",
-	items = {"default:copper_ingot 7, default:tin_ingot", "default:steel_ingot 2"},
+	items = {"default:copper_ingot 7, default:tin_ingot, default:steel_ingot 2"},
 })
 
 i3.register_craft({
diff --git a/mods/gui/i3/textures/i3_add.png b/mods/gui/i3/textures/i3_add.png
new file mode 100644
index 0000000..68cd3ea
Binary files /dev/null and b/mods/gui/i3/textures/i3_add.png differ
diff --git a/mods/gui/i3/textures/i3_armor.png b/mods/gui/i3/textures/i3_armor.png
new file mode 100644
index 0000000..f838673
Binary files /dev/null and b/mods/gui/i3/textures/i3_armor.png differ
diff --git a/mods/gui/i3/textures/i3_armor_hover.png b/mods/gui/i3/textures/i3_armor_hover.png
new file mode 100644
index 0000000..4d94503
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diff --git a/mods/gui/i3/textures/i3_arrow.png b/mods/gui/i3/textures/i3_arrow.png
index df1bbdb..42bba58 100644
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diff --git a/mods/gui/i3/textures/i3_award.png b/mods/gui/i3/textures/i3_award.png
new file mode 100644
index 0000000..680af5e
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diff --git a/mods/gui/i3/textures/i3_award_hover.png b/mods/gui/i3/textures/i3_award_hover.png
new file mode 100644
index 0000000..43e8725
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diff --git a/mods/gui/i3/textures/i3_bag.png b/mods/gui/i3/textures/i3_bag.png
new file mode 100644
index 0000000..7f0a9f1
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diff --git a/mods/gui/i3/textures/i3_bag_hover.png b/mods/gui/i3/textures/i3_bag_hover.png
new file mode 100644
index 0000000..cccf13b
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diff --git a/mods/gui/i3/textures/i3_bag_large.png b/mods/gui/i3/textures/i3_bag_large.png
index bfeb875..4946647 100644
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diff --git a/mods/gui/i3/textures/i3_bag_medium.png b/mods/gui/i3/textures/i3_bag_medium.png
index 0b4c11d..e752801 100644
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diff --git a/mods/gui/i3/textures/i3_bag_small.png b/mods/gui/i3/textures/i3_bag_small.png
index e4a3c62..c9f5136 100644
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diff --git a/mods/gui/i3/textures/i3_bar.png b/mods/gui/i3/textures/i3_bar.png
index 6199e3b..164b256 100644
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diff --git a/mods/gui/i3/textures/i3_bg.png b/mods/gui/i3/textures/i3_bg.png
index 383d532..1cad26d 100644
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diff --git a/mods/gui/i3/textures/i3_bg_full.png b/mods/gui/i3/textures/i3_bg_full.png
index 9b29903..5760d54 100644
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diff --git a/mods/gui/i3/textures/i3_book.png b/mods/gui/i3/textures/i3_book.png
index 69855fd..9332b36 100644
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diff --git a/mods/gui/i3/textures/i3_cancel.png b/mods/gui/i3/textures/i3_cancel.png
index 0f6a2c4..c8ef35b 100644
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diff --git a/mods/gui/i3/textures/i3_compress.png b/mods/gui/i3/textures/i3_compress.png
index 754179c..1584131 100644
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diff --git a/mods/gui/i3/textures/i3_export.png b/mods/gui/i3/textures/i3_export.png
index e179c07..0e83282 100644
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diff --git a/mods/gui/i3/textures/i3_fav.png b/mods/gui/i3/textures/i3_fav.png
index b1ff1d5..f4ddfa2 100644
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diff --git a/mods/gui/i3/textures/i3_fav_off.png b/mods/gui/i3/textures/i3_fav_off.png
index 61aa7de..e0c36cd 100644
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diff --git a/mods/gui/i3/textures/i3_fire_anim.png b/mods/gui/i3/textures/i3_fire_anim.png
index 22dc40a..1bc7fd3 100644
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diff --git a/mods/gui/i3/textures/i3_furnace_anim.png b/mods/gui/i3/textures/i3_furnace_anim.png
index 472c382..ab3bddc 100644
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diff --git a/mods/gui/i3/textures/i3_heart.png b/mods/gui/i3/textures/i3_heart.png
index 8d88fc8..75d9a1e 100644
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diff --git a/mods/gui/i3/textures/i3_heart_grey.png b/mods/gui/i3/textures/i3_heart_grey.png
index bbceb43..2799427 100644
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diff --git a/mods/gui/i3/textures/i3_heart_half.png b/mods/gui/i3/textures/i3_heart_half.png
index 7132b20..8a8e178 100644
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diff --git a/mods/gui/i3/textures/i3_hotbar.png b/mods/gui/i3/textures/i3_hotbar.png
index b487f4b..d7e5027 100644
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diff --git a/mods/gui/i3/textures/i3_mesepick.png b/mods/gui/i3/textures/i3_mesepick.png
index 1531c3f..ae52c79 100644
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diff --git a/mods/gui/i3/textures/i3_next.png b/mods/gui/i3/textures/i3_next.png
index 9392fe0..50dc3aa 100644
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diff --git a/mods/gui/i3/textures/i3_next_hover.png b/mods/gui/i3/textures/i3_next_hover.png
index 193b983..9de795e 100644
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diff --git a/mods/gui/i3/textures/i3_search.png b/mods/gui/i3/textures/i3_search.png
index 9528709..75ef747 100644
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diff --git a/mods/gui/i3/textures/i3_shapeless.png b/mods/gui/i3/textures/i3_shapeless.png
index 75a4e03..2142107 100644
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diff --git a/mods/gui/i3/textures/i3_skin.png b/mods/gui/i3/textures/i3_skin.png
new file mode 100644
index 0000000..4ed75c3
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diff --git a/mods/gui/i3/textures/i3_skin_hover.png b/mods/gui/i3/textures/i3_skin_hover.png
new file mode 100644
index 0000000..2ae8bb8
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diff --git a/mods/gui/i3/textures/i3_slot.png b/mods/gui/i3/textures/i3_slot.png
index 93e4211..f4a7706 100644
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diff --git a/mods/gui/i3/textures/i3_sort_az.png b/mods/gui/i3/textures/i3_sort_az.png
index 971bd72..54d5197 100644
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diff --git a/mods/gui/i3/textures/i3_sort_za.png b/mods/gui/i3/textures/i3_sort_za.png
index e395669..e4c3fc6 100644
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diff --git a/mods/gui/i3/textures/i3_special.png b/mods/gui/i3/textures/i3_special.png
index 1f1cf63..1c7e5af 100644
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diff --git a/mods/gui/i3/textures/i3_steelpick.png b/mods/gui/i3/textures/i3_steelpick.png
index 7764446..ba90021 100644
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diff --git a/mods/gui/i3/textures/i3_tab.png b/mods/gui/i3/textures/i3_tab.png
index 4dea611..b8c9ec3 100644
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diff --git a/mods/gui/i3/textures/i3_tab_hover.png b/mods/gui/i3/textures/i3_tab_hover.png
index 44c9adc..2923fff 100644
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diff --git a/mods/gui/i3/textures/i3_teleport.png b/mods/gui/i3/textures/i3_teleport.png
new file mode 100644
index 0000000..5b911fa
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diff --git a/mods/gui/i3/textures/i3_trash.png b/mods/gui/i3/textures/i3_trash.png
index 962eac7..de6f148 100644
Binary files a/mods/gui/i3/textures/i3_trash.png and b/mods/gui/i3/textures/i3_trash.png differ
diff --git a/mods/gui/i3/textures/i3_waypoint.png b/mods/gui/i3/textures/i3_waypoint.png
new file mode 100644
index 0000000..14f1e12
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diff --git a/mods/gui/i3/textures/i3_waypoint_hover.png b/mods/gui/i3/textures/i3_waypoint_hover.png
new file mode 100644
index 0000000..a58228e
Binary files /dev/null and b/mods/gui/i3/textures/i3_waypoint_hover.png differ
diff --git a/mods/lib_api/mobs_redo/api.lua b/mods/lib_api/mobs_redo/api.lua
index a3a75c6..9398cda 100644
--- a/mods/lib_api/mobs_redo/api.lua
+++ b/mods/lib_api/mobs_redo/api.lua
@@ -8,12 +8,12 @@ local use_cmi = minetest.global_exists("cmi")
 
 mobs = {
 	mod = "redo",
-	version = "20210323",
+	version = "20210407",
 	intllib = S,
 	invis = minetest.global_exists("invisibility") and invisibility or {}
 }
 
--- localize math functions
+-- localize common functions
 local pi = math.pi
 local square = math.sqrt
 local sin = math.sin
@@ -112,7 +112,8 @@ local mob_class = {
 	light_damage_min = 14,
 	light_damage_max = 15,
 	water_damage = 0,
-	lava_damage = 0,
+	lava_damage = 4,
+	fire_damage = 4,
 	air_damage = 0,
 	suffocation = 2,
 	fall_damage = 1,
@@ -164,6 +165,7 @@ local mob_class = {
 
 local mob_class_meta = {__index = mob_class}
 
+
 -- play sound
 function mob_class:mob_sound(sound)
 
@@ -982,7 +984,12 @@ local is_node_dangerous = function(self, nodename)
 	end
 
 	if self.lava_damage > 0
-	and minetest.get_item_group(nodename, "igniter") ~= 0 then
+	and minetest.get_item_group(nodename, "lava") ~= 0 then
+		return true
+	end
+
+	if self.fire_damage > 0
+	and minetest.get_item_group(nodename, "fire") ~= 0 then
 		return true
 	end
 
@@ -1068,37 +1075,47 @@ function mob_class:do_env_damage()
 	local nodef = minetest.registered_nodes[self.standing_in]
 
 	-- water
-	if self.water_damage and nodef.groups.water then
+	if self.water_damage ~= 0
+	and nodef.groups.water then
 
-		if self.water_damage ~= 0 then
+		self.health = self.health - self.water_damage
 
-			self.health = self.health - self.water_damage
+		effect(pos, 5, "bubble.png", nil, nil, 1, nil)
 
-			effect(pos, 5, "bubble.png", nil, nil, 1, nil)
-
-			if self:check_for_death({type = "environment",
-					pos = pos, node = self.standing_in}) then
-				return true
-			end
+		if self:check_for_death({type = "environment",
+				pos = pos, node = self.standing_in}) then
+			return true
 		end
 
-	-- ignition source (fire or lava)
-	elseif self.lava_damage and nodef.groups.igniter then
+	-- lava damage
+	elseif self.lava_damage ~= 0
+	and nodef.groups.lava  then
 
-		if self.lava_damage ~= 0 then
+		self.health = self.health - self.lava_damage
 
-			self.health = self.health - self.lava_damage
+		effect(pos, 15, "fire_basic_flame.png", 1, 5, 1, 0.2, 15, true)
 
-			effect(pos, 15, "fire_basic_flame.png", 1, 5, 1, 0.2, 15, true)
-
-			if self:check_for_death({type = "environment", pos = pos,
-					node = self.standing_in, hot = true}) then
-				return true
-			end
+		if self:check_for_death({type = "environment", pos = pos,
+				node = self.standing_in, hot = true}) then
+			return true
 		end
 
-	-- damage_per_second node check
-	elseif nodef.damage_per_second ~= 0 then
+	-- fire damage
+	elseif self.fire_damage ~= 0
+	and nodef.groups.fire then
+
+		self.health = self.health - self.fire_damage
+
+		effect(pos, 15, "fire_basic_flame.png", 1, 5, 1, 0.2, 15, true)
+
+		if self:check_for_death({type = "environment", pos = pos,
+				node = self.standing_in, hot = true}) then
+			return true
+		end
+
+	-- damage_per_second node check (not fire and lava)
+	elseif nodef.damage_per_second ~= 0
+	and nodef.groups.lava == 0 and nodef.groups.fire == 0 then
 
 		self.health = self.health - nodef.damage_per_second
 
@@ -2772,15 +2789,37 @@ function mob_class:on_punch(hitter, tflp, tool_capabilities, dir, damage)
 		return true
 	end
 
-	-- is mob protected?
-	if self.protected and hitter:is_player()
-	and minetest.is_protected(self.object:get_pos(),
-			hitter:get_player_name()) then
+	-- is mob protected
+	if self.protected then
 
-		minetest.chat_send_player(hitter:get_player_name(),
-				S("Mob has been protected!"))
+		-- did player hit mob and if so is it in protected area
+		if hitter:is_player() then
 
-		return true
+			local player_name = hitter:get_player_name()
+
+			if player_name ~= self.owner
+			and minetest.is_protected(self.object:get_pos(), player_name) then
+
+				minetest.chat_send_player(hitter:get_player_name(),
+						S("Mob has been protected!"))
+
+				return true
+			end
+
+		-- if protection is on level 2 then dont let arrows harm mobs
+		elseif self.protected == 2 then
+
+			local ent = hitter and hitter:get_luaentity()
+
+			if ent and ent._is_arrow then
+
+				return true -- arrow entity
+
+			elseif not ent then
+
+				return true -- non entity
+			end
+		end
 	end
 
 	local weapon = hitter:get_wielded_item()
@@ -2812,7 +2851,7 @@ function mob_class:on_punch(hitter, tflp, tool_capabilities, dir, damage)
 			end
 
 			damage = damage + (tool_capabilities.damage_groups[group] or 0)
-				* tmp * ((armor[group] or 0) / 100.0)
+					* tmp * ((armor[group] or 0) / 100.0)
 		end
 	end
 
@@ -3149,8 +3188,7 @@ function mob_class:mob_activate(staticdata, def, dtime)
 			def.textures = {def.textures}
 		end
 
-		self.base_texture = def.textures and
-				def.textures[random(#def.textures)]
+		self.base_texture = def.textures and def.textures[random(#def.textures)]
 		self.base_mesh = def.mesh
 		self.base_size = self.visual_size
 		self.base_colbox = self.collisionbox
@@ -3557,6 +3595,7 @@ minetest.register_entity(name, setmetatable({
 	light_damage_max = def.light_damage_max,
 	water_damage = def.water_damage,
 	lava_damage = def.lava_damage,
+	fire_damage = def.fire_damage,
 	air_damage = def.air_damage,
 	suffocation = def.suffocation,
 	fall_damage = def.fall_damage,
@@ -4460,8 +4499,9 @@ function mobs:capture_mob(self, clicker, chance_hand, chance_net,
 		return false
 	end
 
-	-- cannot pick up if not owner
-	if self.owner ~= name and force_take == false then
+	-- cannot pick up if not owner (unless player has protection_bypass priv)
+	if not minetest.check_player_privs(name, "protection_bypass")
+	and self.owner ~= name and force_take == false then
 
 		minetest.chat_send_player(name, S("@1 is owner!", self.owner))
 
@@ -4562,19 +4602,21 @@ function mobs:protect(self, clicker)
 
 	local name = clicker:get_player_name()
 	local tool = clicker:get_wielded_item()
+	local tool_name = tool:get_name()
 
-	if tool:get_name() ~= "mobs:protector" then
+	if tool_name ~= "mobs:protector"
+	and tool_name ~= "mobs:protector2" then
 		return false
 	end
 
-	if self.tamed == false then
+	if not self.tamed then
 		minetest.chat_send_player(name, S("Not tamed!"))
-		return true -- false
+		return true
 	end
 
-	if self.protected == true then
+	if self.protected then
 		minetest.chat_send_player(name, S("Already protected!"))
-		return true -- false
+		return true
 	end
 
 	if not mobs.is_creative(clicker:get_player_name()) then
@@ -4582,9 +4624,15 @@ function mobs:protect(self, clicker)
 		clicker:set_wielded_item(tool)
 	end
 
-	self.protected = true
+	-- set protection level
+	if tool_name == "mobs:protector" then
+		self.protected = true
+	else
+		self.protected = 2 ; self.fire_damage = 0
+	end
 
 	local pos = self.object:get_pos()
+
 	pos.y = pos.y + self.collisionbox[2] + 0.5
 
 	effect(self.object:get_pos(), 25, "mobs_protect_particle.png",
@@ -4682,12 +4730,12 @@ function mobs:feed_tame(self, clicker, feed_count, breed, tame)
 	end
 
 	local item = clicker:get_wielded_item()
+	local name = clicker:get_player_name()
 
 	-- if mob has been tamed you can name it with a nametag
 	if item:get_name() == "mobs:nametag"
-	and clicker:get_player_name() == self.owner then
-
-		local name = clicker:get_player_name()
+	and (name == self.owner
+	or minetest.check_player_privs(name, "protection_bypass")) then
 
 		-- store mob and nametag stack in external variables
 		mob_obj[name] = self
diff --git a/mods/lib_api/mobs_redo/api.txt b/mods/lib_api/mobs_redo/api.txt
index 08214a6..72473a8 100644
--- a/mods/lib_api/mobs_redo/api.txt
+++ b/mods/lib_api/mobs_redo/api.txt
@@ -66,7 +66,10 @@ functions needed for the mob to work properly which contains the following:
                    water.
    'air_damage'    holds damage per second inflicted to mob when standing in air.
    'lava_damage'   holds the damage per second inflicted to mobs when standing
-                   in lava or fire or an ignition source.
+                   in lava.
+   'fire_damage'   holds the damage per second inflicted to mobs when standing
+                   in fire.
+
    'light_damage'  holds the damage per second inflicted to mobs when light
                    level is between the min and max values below
    'light_damage_min' minimum light value when mob is affected (default: 14)
diff --git a/mods/lib_api/mobs_redo/crafts.lua b/mods/lib_api/mobs_redo/crafts.lua
index c137191..3fed158 100644
--- a/mods/lib_api/mobs_redo/crafts.lua
+++ b/mods/lib_api/mobs_redo/crafts.lua
@@ -115,6 +115,22 @@ minetest.register_craft({
 	}
 })
 
+-- level 2 protection rune
+minetest.register_craftitem("mobs:protector2", {
+	description = S("Mob Protection Rune (Level 2)"),
+	inventory_image = "mobs_protector2.png",
+	groups = {flammable = 2}
+})
+
+minetest.register_craft({
+	output = "mobs:protector2",
+	recipe = {
+		{"mobs:protector", "default:mese_crystal", "mobs:protector"},
+		{"default:mese_crystal", "default:diamondblock", "default:mese_crystal"},
+		{"mobs:protector", "default:mese_crystal", "mobs:protector"}
+	}
+})
+
 -- saddle
 minetest.register_craftitem("mobs:saddle", {
 	description = S("Saddle"),
diff --git a/mods/lib_api/mobs_redo/textures/mobs_protector2.png b/mods/lib_api/mobs_redo/textures/mobs_protector2.png
new file mode 100644
index 0000000..8c5a17e
Binary files /dev/null and b/mods/lib_api/mobs_redo/textures/mobs_protector2.png differ
diff --git a/mods/mobs/mobs_mobs/mobs_monster/lava_flan.lua b/mods/mobs/mobs_mobs/mobs_monster/lava_flan.lua
index cbf1cf9..6e355fe 100644
--- a/mods/mobs/mobs_mobs/mobs_monster/lava_flan.lua
+++ b/mods/mobs/mobs_mobs/mobs_monster/lava_flan.lua
@@ -37,6 +37,7 @@ mobs:register_mob("mobs_monster:lava_flan", {
 	},
 	water_damage = 8,
 	lava_damage = 0,
+	fire_damage = 0,
 	light_damage = 0,
 	immune_to = {
 		{"mobs:pick_lava", -2}, -- lava pick heals 2 health
@@ -240,6 +241,7 @@ mobs:register_mob("mobs_monster:obsidian_flan", {
 	},
 	water_damage = 0,
 	lava_damage = 8,
+	fire_damage = 0,
 	light_damage = 0,
 	animation = {
 		speed_normal = 15,
diff --git a/mods/mobs/mobs_mobs/mobs_monster/sand_monster.lua b/mods/mobs/mobs_mobs/mobs_monster/sand_monster.lua
index 21c5af6..67595be 100644
--- a/mods/mobs/mobs_mobs/mobs_monster/sand_monster.lua
+++ b/mods/mobs/mobs_mobs/mobs_monster/sand_monster.lua
@@ -39,6 +39,7 @@ mobs:register_mob("mobs_monster:sand_monster", {
 	attack_type = "dogfight",
 	pathfinding = true,
 	--specific_attack = {"player", "mobs_npc:npc"},
+	--ignore_invisibility = true,
 	reach = 2,
 	damage = 1,
 	hp_min = 4,
diff --git a/my_changes/gui/i3/patched/init.lua b/my_changes/gui/i3/patched/init.lua
new file mode 100644
index 0000000..90fbd1c
--- /dev/null
+++ b/my_changes/gui/i3/patched/init.lua
@@ -0,0 +1,3256 @@
+i3 = {}
+
+-- Caches
+local pdata         = {}
+local init_items    = {}
+local searches      = {}
+local recipes_cache = {}
+local usages_cache  = {}
+local fuel_cache    = {}
+local replacements  = {fuel = {}}
+local toolrepair
+
+local tabs = {}
+
+local progressive_mode = core.settings:get_bool "i3_progressive_mode" and not(core.is_creative_enabled(name))
+local damage_enabled = core.settings:get_bool "enable_damage"
+
+local __3darmor, __skinsdb, __awards
+local sfinv, unified_inventory, old_unified_inventory_fn
+
+local http = core.request_http_api()
+local singleplayer = core.is_singleplayer()
+
+local reg_items = core.registered_items
+local reg_nodes = core.registered_nodes
+local reg_craftitems = core.registered_craftitems
+local reg_tools = core.registered_tools
+local reg_entities = core.registered_entities
+local reg_aliases = core.registered_aliases
+
+local log = core.log
+local after = core.after
+local clr = core.colorize
+local parse_json = core.parse_json
+local write_json = core.write_json
+
+local chat_send = core.chat_send_player
+local show_formspec = core.show_formspec
+local check_privs = core.check_player_privs
+local globalstep = core.register_globalstep
+local on_shutdown = core.register_on_shutdown
+local get_players = core.get_connected_players
+local get_craft_result = core.get_craft_result
+local translate = minetest.get_translated_string
+local on_joinplayer = core.register_on_joinplayer
+local get_all_recipes = core.get_all_craft_recipes
+local slz, dslz = core.serialize, core.deserialize
+local on_mods_loaded = core.register_on_mods_loaded
+local on_leaveplayer = core.register_on_leaveplayer
+local get_player_info = core.get_player_information
+local create_inventory = core.create_detached_inventory
+local on_receive_fields = core.register_on_player_receive_fields
+
+local ESC = core.formspec_escape
+local S = core.get_translator "i3"
+
+local ES = function(...)
+	return ESC(S(...))
+end
+
+local maxn, sort, concat, copy, insert, remove, indexof =
+	table.maxn, table.sort, table.concat, table.copy,
+	table.insert, table.remove, table.indexof
+
+local sprintf, find, gmatch, match, sub, split, upper, lower =
+	string.format, string.find, string.gmatch, string.match,
+	string.sub, string.split, string.upper, string.lower
+
+local min, max, floor, ceil, random =
+	math.min, math.max, math.floor, math.ceil, math.random
+
+local pairs, ipairs, next, type, setmetatable, tonum, unpack, select =
+	pairs, ipairs, next, type, setmetatable, tonumber, unpack, select
+
+local vec_add, vec_mul = vector.add, vector.multiply
+
+local ROWS = 9
+local LINES = 10
+local IPP = ROWS * LINES
+local MAX_FAVS = 6
+local ITEM_BTN_SIZE = 1.1
+
+local INV_SIZE = 36
+local HOTBAR_COUNT = 9
+
+-- Progressive mode
+local POLL_FREQ = 0.25
+local HUD_TIMER_MAX = 1.5
+
+local MIN_FORMSPEC_VERSION = 4
+
+local META_SAVES = {"bag_size", "waypoints"}
+
+local BAG_SIZES = {
+	small  = INV_SIZE + 3,
+	medium = INV_SIZE + 6,
+	large  = INV_SIZE + 9,
+}
+
+local SUBCAT = {
+	"bag",
+	"armor",
+	"skins",
+	"awards",
+	"waypoints",
+}
+
+local PNG = {
+	bg = "i3_bg.png",
+	bg_full = "i3_bg_full.png",
+	bar = "i3_bar.png",
+	hotbar = "i3_hotbar.png",
+	search = "i3_search.png",
+	heart = "i3_heart.png",
+	heart_half = "i3_heart_half.png",
+	heart_grey = "i3_heart_grey.png",
+	prev = "i3_next.png^\\[transformFX",
+	next = "i3_next.png",
+	arrow = "i3_arrow.png",
+	trash = "i3_trash.png",
+	sort_az = "i3_sort_az.png",
+	sort_za = "i3_sort_za.png",
+	compress = "i3_compress.png",
+	fire = "i3_fire.png",
+	fire_anim = "i3_fire_anim.png",
+	book = "i3_book.png",
+	sign = "i3_sign.png",
+	cancel = "i3_cancel.png",
+	export = "i3_export.png",
+	slot = "i3_slot.png",
+	tab = "i3_tab.png",
+	tab_top = "i3_tab.png^\\[transformFY",
+	furnace_anim = "i3_furnace_anim.png",
+	bag = "i3_bag.png",
+	armor = "i3_armor.png",
+	awards = "i3_award.png",
+	skins = "i3_skin.png",
+	waypoints = "i3_waypoint.png",
+	teleport = "i3_teleport.png",
+	add = "i3_add.png",
+
+	cancel_hover = "i3_cancel.png^\\[brighten",
+	search_hover = "i3_search.png^\\[brighten",
+	export_hover = "i3_export.png^\\[brighten",
+	trash_hover = "i3_trash.png^\\[brighten^\\[colorize:#f00:100",
+	compress_hover = "i3_compress.png^\\[brighten",
+	sort_az_hover = "i3_sort_az.png^\\[brighten",
+	sort_za_hover = "i3_sort_za.png^\\[brighten",
+	prev_hover = "i3_next_hover.png^\\[transformFX",
+	next_hover = "i3_next_hover.png",
+	tab_hover = "i3_tab_hover.png",
+	tab_hover_top = "i3_tab_hover.png^\\[transformFY",
+	bag_hover = "i3_bag_hover.png",
+	armor_hover = "i3_armor_hover.png",
+	awards_hover = "i3_award_hover.png",
+	skins_hover = "i3_skin_hover.png",
+	waypoints_hover = "i3_waypoint_hover.png",
+	teleport_hover = "i3_teleport.png^\\[brighten",
+	add_hover = "i3_add.png^\\[brighten",
+}
+
+local fs_elements = {
+	label = "label[%f,%f;%s]",
+	box = "box[%f,%f;%f,%f;%s]",
+	image = "image[%f,%f;%f,%f;%s]",
+	tooltip = "tooltip[%f,%f;%f,%f;%s]",
+	button = "button[%f,%f;%f,%f;%s;%s]",
+	item_image = "item_image[%f,%f;%f,%f;%s]",
+	hypertext = "hypertext[%f,%f;%f,%f;%s;%s]",
+	bg9 = "background9[%f,%f;%f,%f;%s;false;%u]",
+	scrollbar = "scrollbar[%f,%f;%f,%f;%s;%s;%u]",
+	model = "model[%f,%f;%f,%f;%s;%s;%s;%s;%s;%s;%s]",
+	image_button = "image_button[%f,%f;%f,%f;%s;%s;%s]",
+	animated_image = "animated_image[%f,%f;%f,%f;;%s;%u;%u]",
+	item_image_button = "item_image_button[%f,%f;%f,%f;%s;%s;%s]",
+}
+
+local styles = sprintf([[
+	style_type[field;border=false;bgcolor=transparent]
+	style_type[label,field;font_size=16]
+	style_type[image_button;border=false;sound=i3_click]
+	style_type[item_image_button;border=false;bgimg_hovered=%s;sound=i3_click]
+
+	style[cancel;fgimg=%s;fgimg_hovered=%s;content_offset=0]
+	style[search;fgimg=%s;fgimg_hovered=%s;content_offset=0]
+	style[prev_page;fgimg=%s;fgimg_hovered=%s]
+	style[next_page;fgimg=%s;fgimg_hovered=%s]
+	style[prev_recipe;fgimg=%s;fgimg_hovered=%s]
+	style[next_recipe;fgimg=%s;fgimg_hovered=%s]
+	style[prev_usage;fgimg=%s;fgimg_hovered=%s]
+	style[next_usage;fgimg=%s;fgimg_hovered=%s]
+	style[waypoint_add;fgimg=%s;fgimg_hovered=%s;content_offset=0]
+	style[waypoint_delete;fgimg=%s;fgimg_hovered=%s;content_offset=0]
+	style[waypoint_teleport;fgimg=%s;fgimg_hovered=%s;content_offset=0]
+	style[pagenum,no_item,no_rcp;border=false;font=bold;font_size=18;content_offset=0]
+	style[btn_bag,btn_armor,btn_skins;font=bold;font_size=18;border=false;content_offset=0;sound=i3_click]
+	style[craft_rcp,craft_usg;border=false;noclip=true;font_size=16;sound=i3_craft;
+	      bgimg=i3_btn9.png;bgimg_hovered=i3_btn9_hovered.png;
+	      bgimg_pressed=i3_btn9_pressed.png;bgimg_middle=4,6]
+]],
+PNG.slot,
+PNG.cancel,   PNG.cancel_hover,
+PNG.search,   PNG.search_hover,
+PNG.prev,     PNG.prev_hover,
+PNG.next,     PNG.next_hover,
+PNG.prev,     PNG.prev_hover,
+PNG.next,     PNG.next_hover,
+PNG.prev,     PNG.prev_hover,
+PNG.next,     PNG.next_hover,
+PNG.add,      PNG.add_hover,
+PNG.trash,    PNG.trash_hover,
+PNG.teleport, PNG.teleport_hover)
+
+local function get_lang_code(info)
+	return info and info.lang_code
+end
+
+local function get_formspec_version(info)
+	return info and info.formspec_version or 1
+end
+
+local function outdated(name)
+	local fs = sprintf("size[5.8,1.3]image[0,0;1,1;%s]label[1,0;%s]button_exit[2.4,0.8;1,1;;OK]",
+		PNG.book,
+		"Your Minetest client is outdated.\nGet the latest version on minetest.net to use i3")
+
+	show_formspec(name, "i3", fs)
+end
+
+local old_is_creative_enabled = core.is_creative_enabled
+
+function core.is_creative_enabled(name)
+	return check_privs(name, {creative = true}) or old_is_creative_enabled(name)
+end
+
+i3.group_stereotypes = {
+	dye = "dye:white",
+	wool = "wool:white",
+	wood = "default:wood",
+	tree = "default:tree",
+	sand = "default:sand",
+	glass = "default:glass",
+	stick = "default:stick",
+	stone = "default:stone",
+	leaves = "default:leaves",
+	coal = "default:coal_lump",
+	vessel = "vessels:glass_bottle",
+	flower = "flowers:dandelion_yellow",
+	water_bucket = "bucket:bucket_water",
+	mesecon_conductor_craftable = "mesecons:wire_00000000_off",
+}
+
+local group_names = {
+	dye = S"Any dye",
+	coal = S"Any coal",
+	sand = S"Any sand",
+	tree = S"Any tree",
+	wool = S"Any wool",
+	glass = S"Any glass",
+	stick = S"Any stick",
+	stone = S"Any stone",
+	carpet = S"Any carpet",
+	flower = S"Any flower",
+	leaves = S"Any leaves",
+	vessel = S"Any vessel",
+	wood = S"Any wood planks",
+	mushroom = S"Any mushroom",
+
+	["color_red,flower"] = S"Any red flower",
+	["color_blue,flower"] = S"Any blue flower",
+	["color_black,flower"] = S"Any black flower",
+	["color_white,flower"] = S"Any white flower",
+	["color_green,flower"] = S"Any green flower",
+	["color_orange,flower"] = S"Any orange flower",
+	["color_yellow,flower"] = S"Any yellow flower",
+	["color_violet,flower"] = S"Any violet flower",
+
+	["color_red,dye"] = S"Any red dye",
+	["color_blue,dye"] = S"Any blue dye",
+	["color_grey,dye"] = S"Any grey dye",
+	["color_pink,dye"] = S"Any pink dye",
+	["color_cyan,dye"] = S"Any cyan dye",
+	["color_black,dye"] = S"Any black dye",
+	["color_white,dye"] = S"Any white dye",
+	["color_brown,dye"] = S"Any brown dye",
+	["color_green,dye"] = S"Any green dye",
+	["color_orange,dye"] = S"Any orange dye",
+	["color_yellow,dye"] = S"Any yellow dye",
+	["color_violet,dye"] = S"Any violet dye",
+	["color_magenta,dye"] = S"Any magenta dye",
+	["color_dark_grey,dye"] = S"Any dark grey dye",
+	["color_dark_green,dye"] = S"Any dark green dye",
+}
+
+i3.model_alias = {
+	["boats:boat"] = {name = "boats:boat", drawtype = "entity"},
+	["carts:cart"] = {name = "carts:cart", drawtype = "entity", frames = "0,0"},
+	["default:chest"] = {name = "default:chest_open"},
+	["default:chest_locked"] = {name = "default:chest_locked_open"},
+	["doors:door_wood"] = {name = "doors:door_wood_a"},
+	["doors:door_glass"] = {name = "doors:door_glass_a"},
+	["doors:door_obsidian_glass"] = {name = "doors:door_obsidian_glass_a"},
+	["doors:door_steel"] = {name = "doors:door_steel_a"},
+	["xpanes:door_steel_bar"] = {name = "xpanes:door_steel_bar_a"},
+}
+
+local function err(str)
+	return log("error", str)
+end
+
+local function msg(name, str)
+	return chat_send(name, sprintf("[i3] %s", str))
+end
+
+local function is_num(x)
+	return type(x) == "number"
+end
+
+local function is_str(x)
+	return type(x) == "string"
+end
+
+local function true_str(str)
+	return is_str(str) and str ~= ""
+end
+
+local function is_table(x)
+	return type(x) == "table"
+end
+
+local function is_func(x)
+	return type(x) == "function"
+end
+
+local function is_group(item)
+	return sub(item, 1, 6) == "group:"
+end
+
+local function fmt(elem, ...)
+	if not fs_elements[elem] then
+		return sprintf(elem, ...)
+	end
+
+	return sprintf(fs_elements[elem], ...)
+end
+
+local function clean_name(item)
+	if sub(item, 1, 1) == ":" or sub(item, 1, 1) == " " then
+		item = sub(item, 2)
+	end
+
+	return item
+end
+
+local function array_diff(t1, t2)
+	local hash = {}
+
+	for i = 1, #t1 do
+		local v = t1[i]
+		hash[v] = true
+	end
+
+	for i = 1, #t2 do
+		local v = t2[i]
+		hash[v] = nil
+	end
+
+	local diff, c = {}, 0
+
+	for i = 1, #t1 do
+		local v = t1[i]
+		if hash[v] then
+			c = c + 1
+			diff[c] = v
+		end
+	end
+
+	return diff
+end
+
+local function table_eq(T1, T2)
+	local avoid_loops = {}
+
+	local function recurse(t1, t2)
+		if type(t1) ~= type(t2) then return end
+
+		if not is_table(t1) then
+			return t1 == t2
+		end
+
+		if avoid_loops[t1] then
+			return avoid_loops[t1] == t2
+		end
+
+		avoid_loops[t1] = t2
+		local t2k, t2kv = {}, {}
+
+		for k in pairs(t2) do
+			if is_table(k) then
+				insert(t2kv, k)
+			end
+
+			t2k[k] = true
+		end
+
+		for k1, v1 in pairs(t1) do
+			local v2 = t2[k1]
+			if type(k1) == "table" then
+				local ok
+				for i = 1, #t2kv do
+					local tk = t2kv[i]
+					if table_eq(k1, tk) and recurse(v1, t2[tk]) then
+						remove(t2kv, i)
+						t2k[tk] = nil
+						ok = true
+						break
+					end
+				end
+
+				if not ok then return end
+			else
+				if v2 == nil then return end
+				t2k[k1] = nil
+				if not recurse(v1, v2) then return end
+			end
+		end
+
+		if next(t2k) then return end
+		return true
+	end
+
+	return recurse(T1, T2)
+end
+
+local function table_merge(t1, t2, hash)
+	t1 = t1 or {}
+	t2 = t2 or {}
+
+	if hash then
+		for k, v in pairs(t2) do
+			t1[k] = v
+		end
+	else
+		local c = #t1
+
+		for i = 1, #t2 do
+			c = c + 1
+			t1[c] = t2[i]
+		end
+	end
+
+	return t1
+end
+
+local function table_replace(t, val, new)
+	for k, v in pairs(t) do
+		if v == val then
+			t[k] = new
+		end
+	end
+end
+
+local function save_meta(player, entries)
+	local name = player:get_player_name()
+	local data = pdata[name]
+	if not data then return end
+
+	local meta = player:get_meta()
+
+	for _, entry in ipairs(entries) do
+		meta:set_string(entry, slz(data[entry]))
+	end
+end
+
+local craft_types = {}
+
+function i3.register_craft_type(name, def)
+	if not true_str(name) then
+		return err "i3.register_craft_type: name missing"
+	end
+
+	if not is_str(def.description) then
+		def.description = ""
+	end
+
+	craft_types[name] = def
+end
+
+function i3.register_craft(def)
+	local width, c = 0, 0
+
+	if true_str(def.url) then
+		if not http then
+			return err(fmt([[i3.register_craft(): Unable to reach %s.
+				No HTTP support for this mod: add it to the `secure.http_mods` or
+				`secure.trusted_mods` setting.]], def.url))
+		end
+
+		http.fetch({url = def.url}, function(result)
+			if result.succeeded then
+				local t = parse_json(result.data)
+				if is_table(t) then
+					return i3.register_craft(t)
+				end
+			end
+		end)
+
+		return
+	end
+
+	if not is_table(def) or not next(def) then
+		return err "i3.register_craft: craft definition missing"
+	end
+
+	if #def > 1 then
+		for _, v in pairs(def) do
+			i3.register_craft(v)
+		end
+		return
+	end
+
+	if def.result then
+		def.output = def.result -- Backward compatibility
+		def.result = nil
+	end
+
+	if not true_str(def.output) then
+		return err "i3.register_craft: output missing"
+	end
+
+	if not is_table(def.items) then
+		def.items = {}
+	end
+
+	if def.grid then
+		if not is_table(def.grid) then
+			def.grid = {}
+		end
+
+		if not is_table(def.key) then
+			def.key = {}
+		end
+
+		local cp = copy(def.grid)
+		sort(cp, function(a, b)
+			return #a > #b
+		end)
+
+		width = #cp[1]
+
+		for i = 1, #def.grid do
+			while #def.grid[i] < width do
+				def.grid[i] = def.grid[i] .. " "
+			end
+		end
+
+		for symbol in gmatch(concat(def.grid), ".") do
+			c = c + 1
+			def.items[c] = def.key[symbol]
+		end
+	else
+		local items, len = def.items, #def.items
+		def.items = {}
+
+		for i = 1, len do
+			local rlen = #split(items[i], ",")
+
+			if rlen > width then
+				width = rlen
+			end
+		end
+
+		for i = 1, len do
+			while #split(items[i], ",") < width do
+				items[i] = fmt("%s,", items[i])
+			end
+		end
+
+		for name in gmatch(concat(items, ","), "[%s%w_:]+") do
+			c = c + 1
+			def.items[c] = clean_name(name)
+		end
+	end
+
+	local item = match(def.output, "%S+")
+	recipes_cache[item] = recipes_cache[item] or {}
+
+	def.custom = true
+	def.width = width
+
+	insert(recipes_cache[item], def)
+end
+
+local recipe_filters = {}
+
+function i3.add_recipe_filter(name, f)
+	if not true_str(name) then
+		return err "i3.add_recipe_filter: name missing"
+	elseif not is_func(f) then
+		return err "i3.add_recipe_filter: function missing"
+	end
+
+	recipe_filters[name] = f
+end
+
+function i3.set_recipe_filter(name, f)
+	if not is_str(name) then
+		return err "i3.set_recipe_filter: name missing"
+	elseif not is_func(f) then
+		return err "i3.set_recipe_filter: function missing"
+	end
+
+	recipe_filters = {[name] = f}
+end
+
+function i3.delete_recipe_filter(name)
+	recipe_filters[name] = nil
+end
+
+function i3.get_recipe_filters()
+	return recipe_filters
+end
+
+local function apply_recipe_filters(recipes, player)
+	for _, filter in pairs(recipe_filters) do
+		recipes = filter(recipes, player)
+	end
+
+	return recipes
+end
+
+local search_filters = {}
+
+function i3.add_search_filter(name, f)
+	if not true_str(name) then
+		return err "i3.add_search_filter: name missing"
+	elseif not is_func(f) then
+		return err "i3.add_search_filter: function missing"
+	end
+
+	search_filters[name] = f
+end
+
+function i3.remove_search_filter(name)
+	search_filters[name] = nil
+end
+
+function i3.get_search_filters()
+	return search_filters
+end
+
+local function weird_desc(str)
+	return not true_str(str) or find(str, "\n") or not find(str, "%u")
+end
+
+local function toupper(str)
+	return str:gsub("%f[%w]%l", upper):gsub("_", " ")
+end
+
+local function snip(str, limit)
+	return #str > limit and fmt("%s...", sub(str, 1, limit - 3)) or str
+end
+
+local function get_desc(item)
+	if sub(item, 1, 1) == "_" then
+		item = sub(item, 2)
+	end
+
+	local def = reg_items[item]
+
+	if not def then
+		return S("Unknown Item (@1)", item)
+	end
+
+	local desc = def.description
+
+	if true_str(desc) then
+		desc = desc:trim():match("[^\n]*"):gsub("_", " ")
+
+		if not find(desc, "%u") then
+			desc = toupper(desc)
+		end
+
+		return desc
+
+	elseif true_str(item) then
+		return toupper(match(item, ":(.*)"))
+	end
+end
+
+local function item_has_groups(item_groups, groups)
+	for i = 1, #groups do
+		local group = groups[i]
+		if (item_groups[group] or 0) == 0 then return end
+	end
+
+	return true
+end
+
+local function extract_groups(str)
+	if sub(str, 1, 6) == "group:" then
+		return split(sub(str, 7), ",")
+	end
+end
+
+local function get_filtered_items(player, data)
+	local items, known, c = {}, 0, 0
+
+	for i = 1, #init_items do
+		local item = init_items[i]
+		local recipes = recipes_cache[item]
+		local usages = usages_cache[item]
+
+		recipes = #apply_recipe_filters(recipes or {}, player)
+		usages = #apply_recipe_filters(usages or {}, player)
+
+		if recipes > 0 or usages > 0 then
+			c = c + 1
+			items[c] = item
+
+			if data then
+				known = known + recipes + usages
+			end
+		end
+	end
+
+	if data then
+		data.known_recipes = known
+	end
+
+	return items
+end
+
+local function get_burntime(item)
+	return get_craft_result{method = "fuel", items = {item}}.time
+end
+
+local function cache_fuel(item)
+	local burntime = get_burntime(item)
+	if burntime > 0 then
+		fuel_cache[item] = {
+			type = "fuel",
+			items = {item},
+			burntime = burntime,
+			replacements = replacements.fuel[item],
+		}
+	end
+end
+
+local function show_item(def)
+	return def and def.groups.not_in_creative_inventory ~= 1 and
+		def.description and def.description ~= ""
+end
+
+local function search(data)
+	local filter = data.filter
+
+	if searches[filter] then
+		data.items = searches[filter]
+		return
+	end
+
+	local opt = "^(.-)%+([%w_]+)=([%w_,]+)"
+	local search_filter = next(search_filters) and match(filter, opt)
+	local filters = {}
+
+	if search_filter then
+		for filter_name, values in gmatch(filter, sub(opt, 6)) do
+			if search_filters[filter_name] then
+				values = split(values, ",")
+				filters[filter_name] = values
+			end
+		end
+	end
+
+	local filtered_list, c = {}, 0
+
+	for i = 1, #data.items_raw do
+		local item = data.items_raw[i]
+		local def = reg_items[item]
+		local desc = lower(translate(data.lang_code, def and def.description)) or ""
+		local search_in = fmt("%s %s", item, desc)
+		local temp, j, to_add = {}, 1
+
+		if search_filter then
+			for filter_name, values in pairs(filters) do
+				if values then
+					local func = search_filters[filter_name]
+					to_add = (j > 1 and temp[item] or j == 1) and
+						func(item, values) and (search_filter == "" or
+						find(search_in, search_filter, 1, true))
+
+					if to_add then
+						temp[item] = true
+					end
+
+					j = j + 1
+				end
+			end
+		else
+			to_add = find(search_in, filter, 1, true)
+		end
+
+		if to_add then
+			c = c + 1
+			filtered_list[c] = item
+		end
+	end
+
+	if not next(recipe_filters) then
+		-- Cache the results only if searched 2 times
+		if searches[filter] == nil then
+			searches[filter] = false
+		else
+			searches[filter] = filtered_list
+		end
+	end
+
+	data.items = filtered_list
+end
+
+local function get_item_usages(item, recipe, added)
+	local groups = extract_groups(item)
+
+	if groups then
+		for name, def in pairs(reg_items) do
+			if not added[name] and show_item(def) and item_has_groups(def.groups, groups) then
+				local usage = copy(recipe)
+				table_replace(usage.items, item, name)
+
+				usages_cache[name] = usages_cache[name] or {}
+				insert(usages_cache[name], 1, usage)
+
+				added[name] = true
+			end
+		end
+	elseif show_item(reg_items[item]) then
+		usages_cache[item] = usages_cache[item] or {}
+		insert(usages_cache[item], 1, recipe)
+	end
+end
+
+local function get_usages(recipe)
+	local added = {}
+
+	for _, item in pairs(recipe.items) do
+		item = reg_aliases[item] or item
+
+		if not added[item] then
+			get_item_usages(item, recipe, added)
+			added[item] = true
+		end
+	end
+end
+
+local function cache_usages(item)
+	local recipes = recipes_cache[item] or {}
+
+	for i = 1, #recipes do
+		get_usages(recipes[i])
+	end
+
+	if fuel_cache[item] then
+		usages_cache[item] = table_merge(usages_cache[item] or {}, {fuel_cache[item]})
+	end
+end
+
+local function drop_table(name, drop)
+	local count_sure = 0
+	local drop_items = drop.items or {}
+	local max_items = drop.max_items
+
+	for i = 1, #drop_items do
+		local di = drop_items[i]
+		local valid_rarity = di.rarity and di.rarity > 1
+
+		if di.rarity or not max_items or
+				(max_items and not di.rarity and count_sure < max_items) then
+			for j = 1, #di.items do
+				local dstack = ItemStack(di.items[j])
+				local dname  = dstack:get_name()
+				local dcount = dstack:get_count()
+				local empty  = dstack:is_empty()
+
+				if not empty and (dname ~= name or (dname == name and dcount > 1)) then
+					local rarity = valid_rarity and di.rarity
+
+					i3.register_craft{
+						type   = rarity and "digging_chance" or "digging",
+						items  = {name},
+						output = fmt("%s %u", dname, dcount),
+						rarity = rarity,
+						tools  = di.tools,
+					}
+				end
+			end
+		end
+
+		if not di.rarity then
+			count_sure = count_sure + 1
+		end
+	end
+end
+
+local function cache_drops(name, drop)
+	if true_str(drop) then
+		local dstack = ItemStack(drop)
+		local dname  = dstack:get_name()
+		local empty  = dstack:is_empty()
+
+		if not empty and dname ~= name then
+			i3.register_craft{
+				type = "digging",
+				items = {name},
+				output = drop,
+			}
+		end
+	elseif is_table(drop) then
+		drop_table(name, drop)
+	end
+end
+
+local function cache_recipes(item)
+	local recipes = get_all_recipes(item)
+
+	if replacements[item] then
+		local _recipes = {}
+
+		for k, v in ipairs(recipes or {}) do
+			_recipes[#recipes + 1 - k] = v
+		end
+
+		local shift = 0
+		local size_rpl = maxn(replacements[item])
+		local size_rcp = #_recipes
+
+		if size_rpl > size_rcp then
+			shift = size_rcp - size_rpl
+		end
+
+		for k, v in pairs(replacements[item]) do
+			k = k + shift
+
+			if _recipes[k] then
+				_recipes[k].replacements = v
+			end
+		end
+
+		recipes = _recipes
+	end
+
+	if recipes then
+		recipes_cache[item] = table_merge(recipes, recipes_cache[item] or {})
+	end
+end
+
+local function get_recipes(player, item)
+	local clean_item = reg_aliases[item] or item
+	local recipes = recipes_cache[clean_item]
+	local usages = usages_cache[clean_item]
+
+	if recipes then
+		recipes = apply_recipe_filters(recipes, player)
+	end
+
+	local no_recipes = not recipes or #recipes == 0
+	if no_recipes and not usages then return end
+	usages = apply_recipe_filters(usages, player)
+
+	local no_usages = not usages or #usages == 0
+
+	return not no_recipes and recipes or nil,
+	       not no_usages  and usages  or nil
+end
+
+local function groups_to_items(groups, get_all)
+	if not get_all and #groups == 1 then
+		local group = groups[1]
+		local stereotype = i3.group_stereotypes[group]
+		local def = reg_items[stereotype]
+
+		if def and show_item(def) then
+			return stereotype
+		end
+	end
+
+	local names = {}
+	for name, def in pairs(reg_items) do
+		if show_item(def) and item_has_groups(def.groups, groups) then
+			if get_all then
+				names[#names + 1] = name
+			else
+				return name
+			end
+		end
+	end
+
+	return get_all and names or ""
+end
+
+local function __sort(inv, reverse)
+	sort(inv, function(a, b)
+		if not is_str(a) then
+			a = a:get_name()
+		end
+
+		if not is_str(b) then
+			b = b:get_name()
+		end
+
+		if reverse then
+			return a > b
+		end
+
+		return a < b
+	end)
+end
+
+local function sort_itemlist(player, az)
+	local inv = player:get_inventory()
+	local list = inv:get_list("main")
+	local size = inv:get_size("main")
+	local new_inv, stack_meta = {}, {}
+
+	for i = 1, size do
+		local stack = list[i]
+		local name = stack:get_name()
+		local count = stack:get_count()
+		local empty = stack:is_empty()
+		local meta = stack:get_meta():to_table()
+		local wear = stack:get_wear() > 0
+
+		if not empty then
+			if next(meta.fields) or wear then
+				stack_meta[#stack_meta + 1] = stack
+			else
+				new_inv[#new_inv + 1] = fmt("%s %u", name, count)
+			end
+		end
+	end
+
+	for i = 1, #stack_meta do
+		new_inv[#new_inv + 1] = stack_meta[i]
+	end
+
+	if az then
+		__sort(new_inv)
+	else
+		__sort(new_inv, true)
+	end
+
+	inv:set_list("main", new_inv)
+end
+
+local function compress_items(player)
+	local inv = player:get_inventory()
+	local list = inv:get_list("main")
+	local size = inv:get_size("main")
+	local new_inv, _new_inv, special = {}, {}, {}
+
+	for i = 1, size do
+		local stack = list[i]
+		local name = stack:get_name()
+		local count = stack:get_count()
+		local stackmax = stack:get_stack_max()
+		local empty = stack:is_empty()
+		local meta = stack:get_meta():to_table()
+		local wear = stack:get_wear() > 0
+
+		if not empty then
+			if next(meta.fields) or wear or count >= stackmax then
+				special[#special + 1] = stack
+			else
+				new_inv[name] = new_inv[name] or 0
+				new_inv[name] = new_inv[name] + count
+			end
+		end
+	end
+
+	for name, count in pairs(new_inv) do
+		local stackmax = ItemStack(name):get_stack_max()
+		local iter = ceil(count / stackmax)
+		local leftover = count
+
+		for _ = 1, iter do
+			_new_inv[#_new_inv + 1] = fmt("%s %u", name, min(stackmax, leftover))
+			leftover = leftover - stackmax
+		end
+	end
+
+	for i = 1, #special do
+		_new_inv[#_new_inv + 1] = special[i]
+	end
+
+	__sort(_new_inv)
+	inv:set_list("main", _new_inv)
+end
+
+local function get_stack_max(inv, data, is_recipe, rcp)
+	local list = inv:get_list("main")
+	local size = inv:get_size("main")
+	local counts_inv, counts_rcp, counts = {}, {}, {}
+	local rcp_usg = is_recipe and "recipe" or "usage"
+
+	for _, it in pairs(rcp.items) do
+		counts_rcp[it] = (counts_rcp[it] or 0) + 1
+	end
+
+	data.export_counts[rcp_usg] = {}
+	data.export_counts[rcp_usg].rcp = counts_rcp
+
+	for i = 1, size do
+		local stack = list[i]
+
+		if not stack:is_empty() then
+			local item = stack:get_name()
+			local count = stack:get_count()
+
+			for name in pairs(counts_rcp) do
+				if is_group(name) then
+					local def = reg_items[item]
+
+					if def then
+						local groups = extract_groups(name)
+
+						if item_has_groups(def.groups, groups) then
+							counts_inv[name] = (counts_inv[name] or 0) + count
+						end
+					end
+				end
+			end
+
+			counts_inv[item] = (counts_inv[item] or 0) + count
+		end
+	end
+
+	data.export_counts[rcp_usg].inv = counts_inv
+
+	for name in pairs(counts_rcp) do
+		counts[name] = floor((counts_inv[name] or 0) / (counts_rcp[name] or 0))
+	end
+
+	local max_stacks = math.huge
+
+	for _, count in pairs(counts) do
+		if count < max_stacks then
+			max_stacks = count
+		end
+	end
+
+	return max_stacks
+end
+
+local function spawn_item(player, stack)
+	local dir     = player:get_look_dir()
+	local ppos    = player:get_pos()
+	      ppos.y  = ppos.y + 1.625
+	local look_at = vec_add(ppos, vec_mul(dir, 1))
+
+	core.add_item(look_at, stack)
+end
+
+local function get_stack(player, pname, stack, message)
+	local inv = player:get_inventory()
+
+	if inv:room_for_item("main", stack) then
+		inv:add_item("main", stack)
+		msg(pname, S("@1 added in your inventory", message))
+	else
+		spawn_item(player, stack)
+		msg(pname, S("@1 spawned", message))
+	end
+end
+
+local function craft_stack(player, pname, data, craft_rcp)
+	local inv = player:get_inventory()
+	local rcp_usg = craft_rcp and "recipe" or "usage"
+	local output = craft_rcp and data.recipes[data.rnum].output or data.usages[data.unum].output
+	      output = ItemStack(output)
+	local stackname, stackcount, stackmax = output:get_name(), output:get_count(), output:get_stack_max()
+	local scrbar_val = data[fmt("scrbar_%s", craft_rcp and "rcp" or "usg")] or 1
+
+	for name, count in pairs(data.export_counts[rcp_usg].rcp) do
+		local items = {[name] = count}
+
+		if is_group(name) then
+			items = {}
+			local groups = extract_groups(name)
+			local item_groups = groups_to_items(groups, true)
+			local remaining = count
+
+			for _, item in ipairs(item_groups) do
+			for _name, _count in pairs(data.export_counts[rcp_usg].inv) do
+				if item == _name and remaining > 0 then
+					local c = min(remaining, _count)
+					items[item] = c
+					remaining = remaining - c
+				end
+
+				if remaining == 0 then break end
+			end
+			end
+		end
+
+		for k, v in pairs(items) do
+			inv:remove_item("main", fmt("%s %s", k, v * scrbar_val))
+		end
+	end
+
+	local count = stackcount * scrbar_val
+	local desc = get_desc(stackname)
+	local iter = ceil(count / stackmax)
+	local leftover = count
+
+	for _ = 1, iter do
+		local c = min(stackmax, leftover)
+		local message
+
+		if c > 1 then
+			message = clr("#ff0", fmt("%s x %s", c, desc))
+		else
+			message = clr("#ff0", fmt("%s", desc))
+		end
+
+		local stack = ItemStack(fmt("%s %s", stackname, c))
+		get_stack(player, pname, stack, message)
+		leftover = leftover - stackmax
+	end
+end
+
+local function select_item(player, name, data, _f)
+	local item
+
+	for field in pairs(_f) do
+		if find(field, ":") then
+			item = field
+			break
+		end
+	end
+
+	if not item then
+		return
+	elseif sub(item, -4) == "_inv" then
+		item = sub(item, 1, -5)
+	elseif sub(item, 1, 1) == "_" then
+		item = sub(item, 2)
+	elseif sub(item, 1, 6) == "group|" then
+		item = match(item, "([%w:_]+)$")
+	end
+
+	item = reg_aliases[item] or item
+	if not reg_items[item] then return end
+
+	if core.is_creative_enabled(name) then
+		local stack = ItemStack(item)
+		local stackmax = stack:get_stack_max()
+		stack = fmt("%s %s", item, stackmax)
+		get_stack(player, name, stack, clr("#ff0", fmt("%u x %s", stackmax, item)))
+		return
+	end
+
+	if item == data.query_item then return end
+	local recipes, usages = get_recipes(player, item)
+
+	data.query_item = item
+	data.recipes    = recipes
+	data.usages     = usages
+	data.rnum       = 1
+	data.unum       = 1
+	data.scrbar_rcp = 1
+	data.scrbar_usg = 1
+	data.export_rcp = nil
+	data.export_usg = nil
+end
+
+local function repairable(tool)
+	local def = reg_tools[tool]
+	return toolrepair and def and def.groups and def.groups.disable_repair ~= 1
+end
+
+local function is_fav(favs, query_item)
+	local fav, i
+	for j = 1, #favs do
+		if favs[j] == query_item then
+			fav = true
+			i = j
+			break
+		end
+	end
+
+	return fav, i
+end
+
+local function get_tooltip(item, info)
+	local tooltip
+
+	if info.groups then
+		sort(info.groups)
+		tooltip = group_names[concat(info.groups, ",")]
+
+		if not tooltip then
+			local groupstr = {}
+
+			for i = 1, #info.groups do
+				insert(groupstr, clr("#ff0", info.groups[i]))
+			end
+
+			groupstr = concat(groupstr, ", ")
+			tooltip = S("Any item belonging to the groups: @1", groupstr)
+		end
+	else
+		tooltip = get_desc(item)
+	end
+
+	local function add(str)
+		return fmt("%s\n%s", tooltip, str)
+	end
+
+	if info.cooktime then
+		tooltip = add(S("Cooking time: @1", clr("#ff0", info.cooktime)))
+	end
+
+	if info.burntime then
+		tooltip = add(S("Burning time: @1", clr("#ff0", info.burntime)))
+	end
+
+	if info.replace then
+		for i = 1, #info.replace.items do
+			local rpl = match(info.replace.items[i], "%S+")
+			local desc = clr("#ff0", get_desc(rpl))
+
+			if info.replace.type == "cooking" then
+				tooltip = add(S("Replaced by @1 on smelting", desc))
+			elseif info.replace.type == "fuel" then
+				tooltip = add(S("Replaced by @1 on burning", desc))
+			else
+				tooltip = add(S("Replaced by @1 on crafting", desc))
+			end
+		end
+	end
+
+	if info.repair then
+		tooltip = add(S("Repairable by step of @1", clr("#ff0", toolrepair .. "%")))
+	end
+
+	if info.rarity then
+		local chance = (1 / max(1, info.rarity)) * 100
+		tooltip = add(S("@1 of chance to drop", clr("#ff0", chance .. "%")))
+	end
+
+	if info.tools then
+		local several = #info.tools > 1
+		local names = several and "\n" or ""
+
+		if several then
+			for i = 1, #info.tools do
+				names = fmt("%s\t\t- %s\n", names, clr("#ff0", get_desc(info.tools[i])))
+			end
+
+			tooltip = add(S("Only drop if using one of these tools: @1", sub(names, 1, -2)))
+		else
+			tooltip = add(S("Only drop if using this tool: @1",
+				clr("#ff0", get_desc(info.tools[1]))))
+		end
+	end
+
+	return fmt("tooltip[%s;%s]", item, ESC(tooltip))
+end
+
+local function get_output_fs(fs, data, rcp, is_recipe, shapeless, right, btn_size, _btn_size)
+	local custom_recipe = craft_types[rcp.type]
+
+	if custom_recipe or shapeless or rcp.type == "cooking" then
+		local icon = custom_recipe and custom_recipe.icon or shapeless and "shapeless" or "furnace"
+
+		if not custom_recipe then
+			icon = fmt("i3_%s.png^\\[resize:16x16", icon)
+		end
+
+		local pos_x = right + btn_size + 0.42
+		local pos_y = data.yoffset + 0.9
+
+		if sub(icon, 1, 10) == "i3_furnace" then
+			fs("animated_image", pos_x, pos_y, 0.5, 0.5, PNG.furnace_anim, 8, 180)
+		else
+			fs("image", pos_x, pos_y, 0.5, 0.5, icon)
+		end
+
+		local tooltip = custom_recipe and custom_recipe.description or
+				shapeless and S"Shapeless" or S"Cooking"
+
+		fs("tooltip", pos_x, pos_y, 0.5, 0.5, ESC(tooltip))
+	end
+
+	local arrow_X = right + 0.2 + (_btn_size or ITEM_BTN_SIZE)
+	local X = arrow_X + 1.2
+	local Y = data.yoffset + 1.4
+
+	fs("image", arrow_X, Y + 0.06, 1, 1, PNG.arrow)
+
+	if rcp.type == "fuel" then
+		fs("animated_image", X + 0.05, Y, ITEM_BTN_SIZE, ITEM_BTN_SIZE, PNG.fire_anim, 8, 180)
+	else
+		local item = rcp.output
+		      item = ItemStack(clean_name(item))
+		local name = item:get_name()
+		local count = item:get_count()
+		local bt_s = ITEM_BTN_SIZE * 1.2
+
+		fs("image", X, Y - 0.11, bt_s, bt_s, PNG.slot)
+
+		local _name = fmt("_%s", name)
+
+		fs("item_image_button",
+			X + 0.11, Y, ITEM_BTN_SIZE, ITEM_BTN_SIZE,
+			fmt("%s %u", name, count * (is_recipe and data.scrbar_rcp or data.scrbar_usg or 1)),
+			_name, "")
+
+		local def = reg_items[name]
+		local unknown = not def or nil
+		local desc = def and def.description
+		local weird = name ~= "" and desc and weird_desc(desc) or nil
+		local burntime = fuel_cache[name] and fuel_cache[name].burntime
+
+		local infos = {
+			unknown  = unknown,
+			weird    = weird,
+			burntime = burntime,
+			repair   = repairable(name),
+			rarity   = rcp.rarity,
+			tools    = rcp.tools,
+		}
+
+		if next(infos) then
+			fs(get_tooltip(_name, infos))
+		end
+	end
+end
+
+local function get_grid_fs(fs, data, rcp, is_recipe)
+	local width = rcp.width or 1
+	local right, btn_size, _btn_size = 0, ITEM_BTN_SIZE
+	local cooktime, shapeless
+
+	if rcp.type == "cooking" then
+		cooktime, width = width, 1
+	elseif width == 0 and not rcp.custom then
+		shapeless = true
+		local n = #rcp.items
+		width = (n < 5 and n > 1) and 2 or min(3, max(1, n))
+	end
+
+	local rows = ceil(maxn(rcp.items) / width)
+	local large_recipe = width > 3 or rows > 3
+
+	if large_recipe then
+		fs("style_type[item_image_button;border=true]")
+	end
+
+	for i = 1, width * rows do
+		local item = rcp.items[i] or ""
+		item = clean_name(item)
+		local name = match(item, "%S*")
+
+		local X = ceil((i - 1) % width - width)
+		X = X + (X * 0.2) + data.xoffset + 3.9
+
+		local Y = ceil(i / width) - min(2, rows)
+		Y = Y + (Y * 0.15)  + data.yoffset + 1.4
+
+		if large_recipe then
+			btn_size = (3 / width) * (3 / rows) + 0.3
+			_btn_size = btn_size
+
+			local xi = (i - 1) % width
+			local yi = floor((i - 1) / width)
+
+			X = btn_size * xi + data.xoffset + 0.3 + (xi * 0.05)
+			Y = btn_size * yi + data.yoffset + 0.2 + (yi * 0.05)
+		end
+
+		if X > right then
+			right = X
+		end
+
+		local groups
+
+		if is_group(name) then
+			groups = extract_groups(name)
+			item = groups_to_items(groups)
+		end
+
+		local label = groups and "\nG" or ""
+		local replace
+
+		for j = 1, #(rcp.replacements or {}) do
+			local replacement = rcp.replacements[j]
+			if replacement[1] == name then
+				replace = replace or {type = rcp.type, items = {}}
+
+				local added
+
+				for _, v in ipairs(replace.items) do
+					if replacement[2] == v then
+						added = true
+						break
+					end
+				end
+
+				if not added then
+					label = fmt("%s%s\nR", label ~= "" and "\n" or "", label)
+					replace.items[#replace.items + 1] = replacement[2]
+				end
+			end
+		end
+
+		if not large_recipe then
+			fs("image", X, Y, btn_size, btn_size, PNG.slot)
+		end
+
+		local btn_name = groups and fmt("group|%s|%s", groups[1], item) or item
+
+		fs("item_image_button", X, Y, btn_size, btn_size,
+			fmt("%s %u", item, is_recipe and data.scrbar_rcp or data.scrbar_usg or 1),
+			btn_name, label)
+
+		local def = reg_items[name]
+		local unknown = not def or nil
+		unknown = not groups and unknown or nil
+		local desc = def and def.description
+		local weird = name ~= "" and desc and weird_desc(desc) or nil
+		local burntime = fuel_cache[name] and fuel_cache[name].burntime
+
+		local infos = {
+			unknown  = unknown,
+			weird    = weird,
+			groups   = groups,
+			burntime = burntime,
+			cooktime = cooktime,
+			replace  = replace,
+		}
+
+		if next(infos) then
+			fs(get_tooltip(btn_name, infos))
+		end
+	end
+
+	if large_recipe then
+		fs("style_type[item_image_button;border=false]")
+	end
+
+	get_output_fs(fs, data, rcp, is_recipe, shapeless, right, btn_size, _btn_size)
+end
+
+local function get_rcp_lbl(fs, data, panel, rn, is_recipe)
+	local lbl = ES("Usage @1 of @2", data.unum, rn)
+
+	if is_recipe then
+		lbl = ES("Recipe @1 of @2", data.rnum, rn)
+	end
+
+	local one = rn == 1
+	local y = data.yoffset + 3.3
+
+	fs("hypertext", data.xoffset + (one and 4.7 or 3.95), y, 3, 0.6, "",
+		fmt("<global size=16><right>%s</right>", lbl))
+
+	if not one then
+		local btn_suffix = is_recipe and "recipe" or "usage"
+		local prev_name = fmt("prev_%s", btn_suffix)
+		local next_name = fmt("next_%s", btn_suffix)
+		local size = 0.3
+
+		fs("image_button", data.xoffset + 7.05, y, size, size, "", prev_name, "")
+		fs("image_button", data.xoffset + 7.5,  y, size, size, "", next_name, "")
+	end
+
+	local rcp = is_recipe and panel.rcp[data.rnum] or panel.rcp[data.unum]
+	get_grid_fs(fs, data, rcp, is_recipe)
+end
+
+local function get_model_fs(fs, data, def, model_alias)
+	if model_alias then
+		if model_alias.drawtype == "entity" then
+			def = reg_entities[model_alias.name]
+			local init_props = def.initial_properties
+			def.textures = init_props and init_props.textures or def.textures
+			def.mesh = init_props and init_props.mesh or def.mesh
+		else
+			def = reg_items[model_alias.name]
+		end
+	end
+
+	local tiles = def.tiles or def.textures or {}
+	local t = {}
+
+	for _, v in ipairs(tiles) do
+		local _name
+
+		if v.color then
+			if is_num(v.color) then
+				local hex = fmt("%02x", v.color)
+
+				while #hex < 8 do
+					hex = "0" .. hex
+				end
+
+				_name = fmt("%s^[multiply:%s", v.name,
+					fmt("#%s%s", sub(hex, 3), sub(hex, 1, 2)))
+			else
+				_name = fmt("%s^[multiply:%s", v.name, v.color)
+			end
+		elseif v.animation then
+			_name = fmt("%s^[verticalframe:%u:0", v.name, v.animation.aspect_h)
+		end
+
+		t[#t + 1] = _name or v.name or v
+	end
+
+	while #t < 6 do
+		t[#t + 1] = t[#t]
+	end
+
+	fs("model", data.xoffset + 6.6, data.yoffset + 0.05, 1.3, 1.3, "",
+		def.mesh, concat(t, ","), "0,0", "true", "true",
+		model_alias and model_alias.frames or "")
+end
+
+local function get_header(fs, data)
+	local fav = is_fav(data.favs, data.query_item)
+	local nfavs = #data.favs
+	local star_x, star_y, star_size = data.xoffset + 0.4, data.yoffset + 0.5, 0.4
+
+	if nfavs < MAX_FAVS or (nfavs == MAX_FAVS and fav) then
+		local fav_marked = fmt("i3_fav%s.png", fav and "_off" or "")
+
+		fs(fmt("style[fav;fgimg=%s;fgimg_hovered=%s;fgimg_pressed=%s]",
+			fmt("i3_fav%s.png", fav and "" or "_off"), fav_marked, fav_marked))
+		fs("image_button", star_x, star_y, star_size, star_size, "", "fav", "")
+		fs(fmt("tooltip[fav;%s]", fav and ES"Unmark this item" or ES"Mark this item"))
+	else
+		fs(fmt("style[nofav;fgimg=%s;fgimg_hovered=%s;fgimg_pressed=%s]",
+			"i3_fav_off.png", PNG.cancel, PNG.cancel))
+		fs("image_button", star_x, star_y, star_size, star_size, "", "nofav", "")
+		fs(fmt("tooltip[nofav;%s]", ES"Cannot mark this item. Bookmark limit reached."))
+	end
+
+	local desc_lim, name_lim = 33, 34
+	local desc = translate(data.lang_code, get_desc(data.query_item))
+	      desc = ESC(desc)
+	local tech_name = data.query_item
+	local X = data.xoffset + 1.05
+	local Y1 = data.yoffset + 0.47
+	local Y2 = Y1 + 0.5
+
+	if #desc > desc_lim then
+		fs("tooltip", X, Y1 - 0.1, 5.7, 0.24, desc)
+		desc = snip(desc, desc_lim)
+	end
+
+	if #tech_name > name_lim then
+		fs("tooltip", X, Y2 - 0.1, 5.7, 0.24, tech_name)
+		tech_name = snip(tech_name, name_lim)
+	end
+
+	fs("style_type[label;font=bold;font_size=20]")
+	fs("label", X, Y1, desc)
+	fs("style_type[label;font=mono;font_size=16]")
+	fs("label", X, Y2, clr("#7bf", tech_name))
+	fs("style_type[label;font=normal;font_size=16]")
+
+	local def = reg_items[data.query_item]
+	local model_alias = i3.model_alias[data.query_item]
+
+	if def.drawtype == "mesh" or model_alias then
+		get_model_fs(fs, data, def, model_alias)
+	else
+		fs("item_image", data.xoffset + 6.8, data.yoffset + 0.17, 1.1, 1.1, data.query_item)
+	end
+end
+
+local function get_export_fs(fs, data, is_recipe, is_usage, max_stacks_rcp, max_stacks_usg)
+	local name = is_recipe and "rcp" or "usg"
+	local show_export = (is_recipe and data.export_rcp) or (is_usage and data.export_usg)
+
+	fs(fmt("style[export_%s;fgimg=%s;fgimg_hovered=%s]",
+		name, fmt("%s", show_export and PNG.export_hover or PNG.export), PNG.export_hover))
+	fs("image_button", data.xoffset + 7.35, data.yoffset + 0.2, 0.45, 0.45, "", fmt("export_%s", name), "")
+	fs(fmt("tooltip[export_%s;%s]", name, ES"Quick crafting"))
+
+	if not show_export then return end
+
+	local craft_max = is_recipe and max_stacks_rcp or max_stacks_usg
+	local stack_fs = (is_recipe and data.scrbar_rcp) or (is_usage and data.scrbar_usg) or 1
+
+	if stack_fs > craft_max then
+		stack_fs = craft_max
+
+		if is_recipe then
+			data.scrbar_rcp = craft_max
+		elseif is_usage then
+			data.scrbar_usg = craft_max
+		end
+	end
+
+	fs(fmt("style[scrbar_%s;noclip=true]", name),
+	   fmt("scrollbaroptions[min=1;max=%u;smallstep=1]", craft_max))
+	fs("scrollbar", data.xoffset + 8.1, data.yoffset, 3, 0.35, "horizontal", fmt("scrbar_%s", name), stack_fs)
+	fs("button", data.xoffset + 8.1, data.yoffset + 0.4, 3, 0.7, fmt("craft_%s", name),
+		ES("Craft (x@1)", stack_fs))
+end
+
+local function get_rcp_extra(player, data, fs, panel, is_recipe, is_usage)
+	local rn = panel.rcp and #panel.rcp
+
+	if rn then
+		local rcp_normal = is_recipe and panel.rcp[data.rnum].type == "normal"
+		local usg_normal = is_usage and panel.rcp[data.unum].type == "normal"
+		local max_stacks_rcp, max_stacks_usg = 0, 0
+		local inv = player:get_inventory()
+
+		if rcp_normal then
+			max_stacks_rcp = get_stack_max(inv, data, is_recipe, panel.rcp[data.rnum])
+		end
+
+		if usg_normal then
+			max_stacks_usg = get_stack_max(inv, data, is_recipe, panel.rcp[data.unum])
+		end
+
+		if is_recipe and max_stacks_rcp == 0 then
+			data.export_rcp = nil
+			data.scrbar_rcp = 1
+		elseif is_usage and max_stacks_usg == 0 then
+			data.export_usg = nil
+			data.scrbar_usg = 1
+		end
+
+		if max_stacks_rcp > 0 or max_stacks_usg > 0 then
+			get_export_fs(fs, data, is_recipe, is_usage, max_stacks_rcp, max_stacks_usg)
+		end
+
+		get_rcp_lbl(fs, data, panel, rn, is_recipe)
+	else
+		local lbl = is_recipe and ES"No recipes" or ES"No usages"
+		fs("button", data.xoffset + 0.1, data.yoffset + (panel.height / 2) - 0.5,
+			7.8, 1, "no_rcp", lbl)
+	end
+end
+
+local function get_favs(fs, data)
+	fs("label", data.xoffset + 0.4, data.yoffset + 0.4, ES"Bookmarks")
+
+	for i = 1, #data.favs do
+		local item = data.favs[i]
+		local X = data.xoffset - 0.7 + (i * 1.2)
+		local Y = data.yoffset + 0.8
+
+		if data.query_item == item then
+			fs("image", X, Y, ITEM_BTN_SIZE, ITEM_BTN_SIZE, PNG.slot)
+		end
+
+		fs("item_image_button", X, Y, ITEM_BTN_SIZE, ITEM_BTN_SIZE, item, item, "")
+	end
+end
+
+local function get_panels(player, data, fs)
+	local _title   = {name = "title", height = 1.4}
+	local _favs    = {name = "favs",  height = 2.23}
+	local _recipes = {name = "recipes", rcp = data.recipes, height = 3.9}
+	local _usages  = {name = "usages",  rcp = data.usages,  height = 3.9}
+	local panels   = {_title, _recipes, _usages, _favs}
+
+	for idx = 1, #panels do
+		local panel = panels[idx]
+		data.yoffset = 0
+
+		if idx > 1 then
+			for _idx = idx - 1, 1, -1 do
+				data.yoffset = data.yoffset + panels[_idx].height + 0.1
+			end
+		end
+
+		fs("bg9", data.xoffset + 0.1, data.yoffset, 7.9, panel.height, PNG.bg_full, 10)
+
+		local is_recipe, is_usage = panel.name == "recipes", panel.name == "usages"
+
+		if is_recipe or is_usage then
+			get_rcp_extra(player, data, fs, panel, is_recipe, is_usage)
+		elseif panel.name == "title" then
+			get_header(fs, data)
+		elseif panel.name == "favs" then
+			get_favs(fs, data)
+		end
+	end
+end
+
+local function add_subtitle(fs, name, y, ctn_len, font_size, label)
+	fs(fmt("style[%s;font=bold;font_size=%u;border=false;content_offset=0]", name, font_size))
+	fs("button", 0, y, ctn_len, 0.5, name, ESC(label))
+	fs("image", 0, y + 0.55, ctn_len, 0.035, PNG.bar)
+end
+
+local function get_award_list(data, fs, ctn_len, yextra, award_list, awards_unlocked, award_list_nb)
+	local percent = fmt("%.1f%%", (awards_unlocked * 100) / award_list_nb):gsub(".0", "")
+
+	add_subtitle(fs, "awards", yextra, ctn_len, 18,
+		ES("Achievements: @1 of @2 (@3)", awards_unlocked, award_list_nb, percent))
+
+	for i = 1, award_list_nb do
+		local award = award_list[i]
+		local y = yextra - 0.5 + i + (i * 0.3)
+
+		local def, progress = award.def, award.progress
+		local title, desc = def.title, def.description
+
+		title = translate(data.lang_code, title)
+		desc = translate(data.lang_code, desc):gsub("%.$", "")
+
+		local title_lim, _title = 27
+		local desc_lim, _desc = 39
+		local icon_size = 1.1
+		local box_len = ctn_len - icon_size + 0.1
+
+		if #title > title_lim then
+			_title = snip(title, title_lim)
+		end
+
+		if #desc > desc_lim then
+			_desc = snip(desc, desc_lim)
+		end
+
+		if not award.unlocked and def.secret then
+			title = ES"Secret award"
+			desc = ES"Unlock this award to find out what it is"
+		end
+
+		local icon = def.icon or "awards_unknown.png"
+
+		if not award.unlocked then
+			icon = fmt("%s^\\[colorize:#000:180", icon)
+		end
+
+		fs[#fs + 1] = fmt("image", 0, y + 0.01, icon_size, icon_size, icon)
+		fs[#fs + 1] = "style_type[box;colors=#bababa30,#bababa30,#bababa05,#bababa05]"
+		fs[#fs + 1] = fmt("box", icon_size + 0.1, y, box_len, icon_size, "")
+
+		if progress then
+			local current, target = progress.current, progress.target
+			local curr_bar = (current * box_len) / target
+
+			fs[#fs + 1] = fmt("box", icon_size + 0.1, y + 0.8, box_len, 0.3, "#101010")
+			fs[#fs + 1] = "style_type[box;colors=#9dc34c80,#9dc34c,#9dc34c,#9dc34c80]"
+			fs[#fs + 1] = fmt("box", icon_size + 0.1, y + 0.8, curr_bar, 0.3, "")
+			fs[#fs + 1] = "style_type[label;font_size=14]"
+			fs[#fs + 1] = fmt("label", icon_size + 0.5, y + 0.97, fmt("%u / %u", current, target))
+
+			y = y - 0.14
+		end
+
+		title = _title or title
+		desc = _desc or desc
+
+		fs[#fs + 1] = "style_type[label;font=bold;font_size=17]"
+		fs[#fs + 1] = fmt("label", icon_size + 0.2, y + 0.4, title)
+		fs[#fs + 1] = "style_type[label;font=normal;font_size=15]"
+		fs[#fs + 1] = fmt("label", icon_size + 0.2, y + 0.75, clr("#bbbbbb", desc))
+		fs[#fs + 1] = "style_type[label;font_size=16]"
+	end
+end
+
+local function get_ctn_content(fs, data, player, yoffset, ctn_len, award_list, awards_unlocked, award_list_nb)
+	local name = player:get_player_name()
+	add_subtitle(fs, "player_name", 0, ctn_len, 22, ESC(name))
+
+	local hp = damage_enabled and (data.hp or player:get_hp()) or 20
+	local half = ceil((hp / 2) % 1)
+	local hearts = (hp / 2) + half
+	local heart_size = 0.35
+	local heart_x, heart_h = 0.65, yoffset + 0.75
+
+	for i = 1, 10 do
+		fs("image", heart_x + ((i - 1) * (heart_size + 0.1)), heart_h,
+			heart_size, heart_size, PNG.heart_grey)
+	end
+
+	if damage_enabled then
+		for i = 1, hearts do
+			fs("image", heart_x + ((i - 1) * (heart_size + 0.1)), heart_h,
+				heart_size, heart_size,
+				(half == 1 and i == floor(hearts)) and PNG.heart_half or PNG.heart)
+		end
+	end
+
+	fs(fmt("list[current_player;craft;%f,%f;3,3;]", 0, yoffset + 1.45))
+	fs("image", 3.47, yoffset + 2.69, 0.85, 0.85, PNG.arrow)
+	fs(fmt("list[current_player;craftpreview;%f,%f;1,1;]", 4.45, yoffset + 2.6))--,
+	--   fmt("list[detached:i3_trash;main;%f,%f;1,1;]", 4.45, yoffset + 3.75))
+	--fs("image", 4.45, yoffset + 3.75, 1, 1, PNG.trash)
+	if core.is_creative_enabled(name) then
+		fs(fmt("list[detached:i3_trash;main;%f,%f;1,1;]", 4.45, yoffset + 3.75))
+		fs("image", 4.45, yoffset + 3.75, 1, 1, PNG.trash)
+	end
+
+	local yextra = 5.5
+
+	for i, title in ipairs(SUBCAT) do
+		local btn_name = fmt("btn_%s", title)
+
+		fs(fmt("style[btn_%s;fgimg=%s;fgimg_hovered=%s;content_offset=0]", title,
+			data.subcat == i and PNG[fmt("%s_hover", title)] or PNG[title],
+			PNG[fmt("%s_hover", title)]))
+
+		fs("image_button", 0.25 + ((i - 1) * 1.18), yextra - 0.2, 0.5, 0.5, "", btn_name, "")
+		fs(fmt("tooltip[%s;%s]", btn_name, title:gsub("^%l", upper)))
+	end
+
+	fs("box", 0, yextra + 0.45, ctn_len, 0.045, "#bababa50")
+	fs("box", (data.subcat - 1) * 1.18, yextra + 0.45, 1, 0.045, "#f9826c")
+
+	local function not_installed(modname)
+		fs("hypertext", 0, yextra + 0.9, ctn_len, 0.6, "",
+			fmt("<center><style color=#7bf font=mono>%s</style> not installed</center>", modname))
+	end
+
+	if data.subcat == 1 then
+		fs(fmt("list[detached:%s_backpack;main;0,%f;1,1;]", ESC(name), yextra + 0.7))
+
+		if not data.bag:get_stack("main", 1):is_empty() then
+			fs("hypertext", 1.2, yextra + 0.89, ctn_len - 1.9, 0.8, "",
+				ES("The inventory is extended by @1 slots", BAG_SIZES[data.bag_size] - INV_SIZE))
+		end
+
+	elseif data.subcat == 2 then
+		if __3darmor then
+			fs(fmt("list[detached:%s_armor;armor;0,%f;3,2;]", ESC(name), yextra + 0.7))
+
+			local armor_def = armor.def[name]
+
+			fs("label", 3.65, yextra + 1.55, fmt("%s: %s", ES"Level", armor_def.level))
+			fs("label", 3.65, yextra + 2.05, fmt("%s: %s", ES"Heal", armor_def.heal))
+		else
+			not_installed("3d_armor")
+		end
+
+	elseif data.subcat == 3 then
+		if __skinsdb then
+			local _skins = skins.get_skinlist_for_player(name)
+			local sks = {}
+
+			for _, skin in ipairs(_skins) do
+				sks[#sks + 1] = skin.name
+			end
+
+			sks = concat(sks, ","):gsub(";", "")
+
+			fs(fmt("dropdown[0,%f;4,0.6;skins;%s;%u;true]", yextra + 0.7, sks, data.skin_id or 1))
+		else
+			not_installed("skinsdb")
+		end
+
+	elseif data.subcat == 4 then
+		if __awards then
+			yextra = yextra + 0.8
+			get_award_list(data, fs, ctn_len, yextra, award_list, awards_unlocked, award_list_nb)
+		else
+			not_installed("awards")
+		end
+
+	elseif data.subcat == 5 then
+		local waypoints = {}
+
+		for _, v in ipairs(data.waypoints or {}) do
+			insert(waypoints, v.name)
+		end
+
+		fs(fmt("dropdown[0,%f;4.2,0.6;waypoints;%s;%u;true]",
+			yextra + 0.7, concat(waypoints, ","), data.waypoint_id))
+
+		local no_waypoint = not data.waypoints or #data.waypoints == 0
+
+		if not no_waypoint then
+			fs("image_button", 4.4, yextra + 0.75, 0.5, 0.5, "", "waypoint_delete", "")
+			fs(fmt("tooltip[waypoint_delete;%s]", ES"Delete waypoint"))
+
+			if core.is_creative_enabled(name) then
+				fs("image_button",
+					no_waypoint and 4.4 or 5.1, yextra + 0.77, 0.5, 0.5,
+					"", "waypoint_teleport", "")
+
+				fs(fmt("tooltip[waypoint_teleport;%s]", ES"Teleport to waypoint"))
+			end
+		end
+
+		fs(fmt("box[0,%f;4.2,0.6;#bababa25]", yextra + 1.5))
+		fs(fmt("field[0.1,%f;4.1,0.6;waypoint_name;;]", yextra + 1.5))
+		fs("image_button", 4.4, yextra + 1.55, 0.5, 0.5, "", "waypoint_add", "")
+		fs(fmt("tooltip[waypoint_add;%s]", ES"Add waypoint"))
+	end
+end
+
+local function get_tabs_fs(player, data, fs, full_height)
+	local tab_len, tab_hgh, c, over = 3, 0.5, 0
+	local _tabs = copy(tabs)
+
+	for i, def in ipairs(tabs) do
+		if def.access and not def.access(player, data) then
+			remove(_tabs, i)
+		end
+	end
+
+	local shift = min(3, #_tabs)
+
+	for i, def in ipairs(_tabs) do
+		if not over and c > 2 then
+			over = true
+			c = 0
+		end
+
+		local btm = i <= 3
+
+		if not btm then
+			shift = #_tabs - 3
+		end
+
+		local selected = i == data.current_tab
+
+		fs(fmt([[style_type[image_button;fgimg=%s;fgimg_hovered=%s;noclip=true;
+			font_size=16;textcolor=%s;content_offset=0;sound=i3_tab] ]],
+		selected and (btm and PNG.tab_hover or PNG.tab_hover_top) or (btm and PNG.tab or PNG.tab_top),
+		btm and PNG.tab_hover or PNG.tab_hover_top, selected and "#fff" or "#ddd"))
+
+		local X = (data.xoffset / 2) + (c * (tab_len + 0.1)) - ((tab_len + 0.05) * (shift / 2))
+		local Y = btm and full_height or -tab_hgh
+
+		fs("style_type[image_button:hovered;textcolor=#fff]")
+		fs("image_button", X, Y, tab_len, tab_hgh, "", fmt("tab_%s", def.name), ESC(def.description))
+
+		if def.image and def.image ~= "" then
+			local desc = translate(data.lang_code, def.description)
+
+			fs("style_type[image;noclip=true]")
+			fs("image", X + (tab_len / 2) - ((#desc * 0.1) / 2) - 0.55,
+				Y + 0.05, 0.35, 0.35, fmt("%s^\\[resize:16x16", def.image))
+		end
+
+		c = c + 1
+	end
+end
+
+local function get_debug_grid(data, fs, full_height)
+	local spacing = 0.2
+
+	for x = 0, data.xoffset, spacing do
+		fs("box", x, 0, 0.01, full_height, "#ff0")
+	end
+
+	for y = 0, full_height, spacing do
+		fs("box", 0, y, data.xoffset, 0.01, "#ff0")
+	end
+
+	fs("box", data.xoffset / 2, 0, 0.01, full_height, "#f00")
+	fs("box", 0, full_height / 2, data.xoffset, 0.01, "#f00")
+end
+
+local function make_fs(player, data)
+	--local start = os.clock()
+
+	local fs = setmetatable({}, {
+		__call = function(t, ...)
+			local args = {...}
+			local elem = fs_elements[args[1]]
+
+			if elem then
+				t[#t + 1] = fmt(elem, select(2, ...))
+			else
+				t[#t + 1] = concat(args)
+			end
+		end
+	})
+
+	data.xoffset = ROWS + 1.23
+	local full_height = LINES + 1.73
+
+	local tab = tabs[data.current_tab]
+	local hide_panels = tab and tab.hide_panels and tab.hide_panels(player, data)
+	local show_panels = data.query_item and tab and not hide_panels
+
+	fs(fmt("formspec_version[%u]size[%f,%f]no_prepend[]bgcolor[#0000]",
+		MIN_FORMSPEC_VERSION, data.xoffset + (show_panels and 8 or 0), full_height), styles)
+
+	fs("bg9", 0, 0, data.xoffset, full_height, PNG.bg_full, 10)
+
+	if tab then
+		tab.formspec(player, data, fs)
+	end
+
+	if show_panels then
+		get_panels(player, data, fs)
+	end
+
+	get_tabs_fs(player, data, fs, full_height)
+
+	--get_debug_grid(data, fs, full_height)
+	--print("make_fs()", fmt("%.2f ms", (os.clock() - start) * 1000))
+
+	return concat(fs)
+end
+
+function i3.set_fs(player, _fs)
+	local name = player:get_player_name()
+	local data = pdata[name]
+	if not data then return end
+
+	local fs = fmt("%s%s", make_fs(player, data), _fs or "")
+	player:set_inventory_formspec(fs)
+end
+
+local set_fs = i3.set_fs
+
+function i3.new_tab(def)
+	if not is_table(def) or not next(def) then
+		return err "i3.new_tab: tab definition missing"
+	end
+
+	if not true_str(def.name) then
+		return err "i3.new_tab: tab name missing"
+	end
+
+	if not true_str(def.description) then
+		return err "i3.new_tab: description missing"
+	end
+
+	if #tabs == 6 then
+		return err(fmt("i3.new_tab: cannot add '%s' tab. Limit reached (6).", def.name))
+	end
+
+	tabs[#tabs + 1] = def
+end
+
+function i3.get_tabs()
+	return tabs
+end
+
+function i3.delete_tab(tabname)
+	if not true_str(tabname) then
+		return err "i3.delete_tab: tab name missing"
+	end
+
+	for i, def in ipairs(tabs) do
+		if tabname == def.name then
+			remove(tabs, i)
+		end
+	end
+end
+
+function i3.set_tab(player, tabname)
+	local name = player:get_player_name()
+	local data = pdata[name]
+
+	if not tabname or tabname == "" then
+		data.current_tab = 0
+		return
+	end
+
+	local found
+
+	for i, def in ipairs(tabs) do
+		if not found and def.name == tabname then
+			data.current_tab = i
+			found = true
+		end
+	end
+
+	if not found then
+		return err(fmt("i3.set_tab: tab name '%s' does not exist", tabname))
+	end
+end
+
+local set_tab = i3.set_tab
+
+function i3.override_tab(tabname, newdef)
+	if not is_table(newdef) or not next(newdef) then
+		return err "i3.override_tab: tab definition missing"
+	end
+
+	if not true_str(newdef.name) then
+		return err "i3.override_tab: tab name missing"
+	end
+
+	if not true_str(newdef.description) then
+		return err "i3.override_tab: description missing"
+	end
+
+	for i, def in ipairs(tabs) do
+		if def.name == tabname then
+			tabs[i] = newdef
+		end
+	end
+end
+
+local function init_data(player, info)
+	local name = player:get_player_name()
+
+	pdata[name] = {
+		filter        = "",
+		pagenum       = 1,
+		items         = init_items,
+		items_raw     = init_items,
+		favs          = {},
+		export_counts = {},
+		current_tab   = 1,
+		subcat        = 1,
+		waypoint_id   = 1,
+		lang_code     = get_lang_code(info),
+	}
+
+	local data = pdata[name]
+	local meta = player:get_meta()
+
+	for i = 1, #META_SAVES do
+		local recover = META_SAVES[i]
+		data[recover] = dslz(meta:get_string(recover))
+	end
+
+	after(0, set_fs, player)
+end
+
+local function reset_data(data)
+	data.filter      = ""
+	data.pagenum     = 1
+	data.rnum        = 1
+	data.unum        = 1
+	data.scrbar_rcp  = 1
+	data.scrbar_usg  = 1
+	data.query_item  = nil
+	data.recipes     = nil
+	data.usages      = nil
+	data.export_rcp  = nil
+	data.export_usg  = nil
+	data.items       = data.items_raw
+end
+
+local function panel_fields(player, data, fields)
+	local name = player:get_player_name()
+	local sb_rcp, sb_usg = fields.scrbar_rcp, fields.scrbar_usg
+
+	if fields.prev_recipe or fields.next_recipe then
+		local num = data.rnum + (fields.prev_recipe and -1 or 1)
+		data.rnum = data.recipes[num] and num or (fields.prev_recipe and #data.recipes or 1)
+		data.export_rcp = nil
+		data.scrbar_rcp = 1
+
+	elseif fields.prev_usage or fields.next_usage then
+		local num = data.unum + (fields.prev_usage and -1 or 1)
+		data.unum = data.usages[num] and num or (fields.prev_usage and #data.usages or 1)
+		data.export_usg = nil
+		data.scrbar_usg = 1
+
+	elseif fields.fav then
+		local fav, i = is_fav(data.favs, data.query_item)
+		local total = #data.favs
+
+		if total < MAX_FAVS and not fav then
+			data.favs[total + 1] = data.query_item
+		elseif fav then
+			remove(data.favs, i)
+		end
+
+	elseif fields.export_rcp or fields.export_usg then
+		if fields.export_rcp then
+			data.export_rcp = not data.export_rcp
+
+			if not data.export_rcp then
+				data.scrbar_rcp = 1
+			end
+		else
+			data.export_usg = not data.export_usg
+
+			if not data.export_usg then
+				data.scrbar_usg = 1
+			end
+		end
+
+	elseif (sb_rcp and sub(sb_rcp, 1, 3) == "CHG") or (sb_usg and sub(sb_usg, 1, 3) == "CHG") then
+		data.scrbar_rcp = sb_rcp and tonum(match(sb_rcp, "%d+"))
+		data.scrbar_usg = sb_usg and tonum(match(sb_usg, "%d+"))
+
+	elseif fields.craft_rcp or fields.craft_usg then
+		craft_stack(player, name, data, fields.craft_rcp)
+	else
+		select_item(player, name, data, fields)
+	end
+end
+
+local function get_inv_slots(data, fs)
+	local inv_x, inv_y = 0.22, 6.6
+	local width, size, spacing = HOTBAR_COUNT, 1, 0.1
+	local bag = data.bag_size
+
+	fs("style_type[box;colors=#77777710,#77777710,#777,#777]")
+
+	for i = 0, HOTBAR_COUNT - 1 do
+		fs("box", i * size + inv_x + (i * spacing), inv_y, size, size, "")
+	end
+
+	fs(fmt("style_type[list;size=%f;spacing=%f]", size, spacing),
+	   fmt("list[current_player;main;%f,%f;%u,1;]", inv_x, inv_y, HOTBAR_COUNT))
+
+	if bag then
+		if bag == "small" then
+			width, size = 10, 0.892
+		elseif bag == "medium" then
+			width, size = 11, 0.8
+		elseif bag == "large" then
+			width, size = 12, 0.726
+		end
+	end
+
+	fs(fmt("style_type[list;size=%f;spacing=%f]", size, spacing),
+	   fmt("list[current_player;main;%f,%f;%u,%u;%u]", inv_x, inv_y + 1.15,
+		width, (bag and BAG_SIZES[data.bag_size] or INV_SIZE) / width, HOTBAR_COUNT),
+	   "style_type[list;size=1;spacing=0.15]")
+
+	fs("listring[current_player;craft]listring[current_player;main]")
+end
+
+local function get_inventory_fs(player, data, fs)
+	fs("listcolors[#bababa50;#bababa99]")
+
+	get_inv_slots(data, fs)
+
+	local props = player:get_properties()
+	local name = player:get_player_name()
+
+	local ctn_len, ctn_hgt = 5.7, 6
+	local yoffset = 0
+
+	if props.mesh ~= "" then
+		local anim = player:get_local_animation()
+		--fs("style[player_model;bgcolor=black]")
+		local armor_skin = __3darmor or __skinsdb
+
+		fs("model", 0.2, 0.2, armor_skin and 4 or 3.4, armor_skin and ctn_hgt or 5.8,
+			"player_model",
+			props.mesh, concat(props.textures, ","), "0,-150", "false", "false",
+			fmt("%u,%u", anim.x, anim.y))
+	else
+		local size = 2.5
+		fs("image", 0.7, 0.2, size, size * props.visual_size.y, props.textures[1])
+	end
+
+	local award_list, award_list_nb
+	local awards_unlocked = 0
+	local max_val = 15
+
+	if __3darmor and data.subcat == 2 then
+		if (data.scrbar_inv or 0) >= max_val then
+			data.scrbar_inv = data.scrbar_inv + 10
+		end
+
+		max_val = max_val + 10
+
+	elseif __awards and data.subcat == 4 then
+		award_list = awards.get_award_states(name)
+		award_list_nb = #award_list
+
+		for i = 1, award_list_nb do
+			local award = award_list[i]
+
+			if award.unlocked then
+				awards_unlocked = awards_unlocked + 1
+			end
+		end
+
+		max_val = max_val + (award_list_nb * 13)
+
+	elseif data.subcat == 5 then
+		max_val = max_val + 3
+	end
+
+	fs(fmt([[
+		scrollbaroptions[arrows=hide;thumbsize=%u;max=%u]
+		scrollbar[%f,0.2;0.2,%f;vertical;scrbar_inv;%u]
+		scrollbaroptions[arrows=default;thumbsize=0;max=1000]
+	]],
+	(max_val * 4) / 15, max_val, 9.8, ctn_hgt, data.scrbar_inv or 0))
+
+	fs(fmt("scroll_container[3.9,0.2;%f,%f;scrbar_inv;vertical]", ctn_len, ctn_hgt))
+
+	get_ctn_content(fs, data, player, yoffset, ctn_len, award_list, awards_unlocked, award_list_nb)
+
+	fs("scroll_container_end[]")
+
+	local btn = {
+		--{"trash", ES"Trash all items"},
+		{"sort_az", ES"Sort items (A-Z)"},
+		{"sort_za", ES"Sort items (Z-A)"},
+		{"compress", ES"Compress items"},
+	}
+	if core.is_creative_enabled(name) then table.insert(btn, 1, {"trash", ES"Trash all items"}) end
+
+	for i, v in ipairs(btn) do
+		local btn_name, tooltip = unpack(v)
+
+		fs(fmt("style[%s;fgimg=%s;fgimg_hovered=%s;content_offset=0]",
+			btn_name, PNG[btn_name], PNG[fmt("%s_hover", btn_name)]))
+
+		fs("image_button", i + 3.447 - (i * 0.4), 11.13, 0.35, 0.35, "", btn_name, "")
+		fs(fmt("tooltip[%s;%s]", btn_name, tooltip))
+	end
+end
+
+local function get_items_fs(_, data, fs)
+	fs("box[0.2,0.2;4.55,0.6;#bababa25]", "set_focus[filter]",
+	   fmt("field[0.3,0.2;3.45,0.6;filter;;%s]", ESC(data.filter)),
+	   "field_close_on_enter[filter;false]")
+
+	fs("image_button", 3.75, 0.35, 0.3, 0.3, "", "cancel", "")
+	fs("image_button", 4.25, 0.32, 0.35, 0.35, "", "search", "")
+	fs("image_button", data.xoffset - 2.73, 0.3, 0.35, 0.35, "", "prev_page", "")
+	fs("image_button", data.xoffset - 0.55, 0.3, 0.35, 0.35, "", "next_page", "")
+
+	data.pagemax = max(1, ceil(#data.items / IPP))
+
+	fs("button", data.xoffset - 2.4, 0.14, 1.88, 0.7, "pagenum",
+		fmt("%s / %u", clr("#ff0", data.pagenum), data.pagemax))
+
+	if #data.items == 0 then
+		local lbl = ES"No item to show"
+
+		if next(recipe_filters) and #init_items > 0 and data.filter == "" then
+			lbl = ES"Collect items to reveal more recipes"
+		end
+
+		fs("button", 0, 3, data.xoffset, 1, "no_item", lbl)
+	end
+
+	local first_item = (data.pagenum - 1) * IPP
+
+	for i = first_item, first_item + IPP - 1 do
+		local item = data.items[i + 1]
+		if not item then break end
+
+		local X = i % ROWS
+		X = X + (X * 0.1) + 0.2
+
+		local Y = floor((i % IPP - X) / ROWS + 1)
+		Y = Y + (Y * 0.06) + 1
+
+		if data.query_item == item then
+			fs("image", X, Y, 1, 1, PNG.slot)
+		end
+
+		fs[#fs + 1] = fmt("item_image_button", X, Y, 1, 1, item, fmt("%s_inv", item), "")
+	end
+end
+
+i3.new_tab {
+	name = "inventory",
+	description = S"Inventory",
+	formspec = get_inventory_fs,
+
+	fields = function(player, data, fields)
+		local name = player:get_player_name()
+		local sb_inv = fields.scrbar_inv
+
+		if not core.is_creative_enabled(name) then
+			panel_fields(player, data, fields)
+		end
+
+		if fields.skins and data.skin_id ~= tonum(fields.skins) then
+			data.skin_id = tonum(fields.skins)
+			local _skins = skins.get_skinlist_for_player(name)
+			skins.set_player_skin(player, _skins[data.skin_id])
+		end
+
+		if fields.waypoints then
+			data.waypoint_id = tonumber(fields.waypoints)
+		end
+
+		for field in pairs(fields) do
+			if sub(field, 1, 4) == "btn_" then
+				data.subcat = indexof(SUBCAT, sub(field, 5))
+				break
+			end
+		end
+
+		if fields.trash then
+			local inv = player:get_inventory()
+			inv:set_list("main", {})
+			inv:set_list("craft", {})
+
+		elseif fields.compress then
+			compress_items(player)
+
+		elseif fields.sort_az or fields.sort_za then
+			sort_itemlist(player, fields.sort_az)
+
+		elseif sb_inv and sub(sb_inv, 1, 3) == "CHG" then
+			data.scrbar_inv = tonum(match(sb_inv, "%d+"))
+			return
+
+		elseif fields.waypoint_add then
+			data.waypoints = data.waypoints or {}
+			local waypoint = fields.waypoint_name
+			local last = #data.waypoints + 1
+			data.waypoint_id = last
+
+			if fields.waypoint_name == "" then
+				waypoint = fmt("Waypoint %u", last)
+			end
+
+			local color = random(0xffffff)
+			local pos = player:get_pos()
+
+			local id = player:hud_add {
+				hud_elem_type = "waypoint",
+				name = waypoint,
+				text = " m",
+				world_pos = pos,
+				number = color,
+				z_index = -300,
+			}
+
+			insert(data.waypoints, {name = waypoint, pos = pos, color = color, id = id})
+
+		elseif fields.waypoint_delete then
+			local waypoint = data.waypoints[data.waypoint_id]
+			player:hud_remove(waypoint.id)
+			remove(data.waypoints, data.waypoint_id)
+			data.waypoint_id = data.waypoint_id + (data.waypoint_id == 1 and 0 or -1)
+
+		elseif fields.waypoint_teleport then
+			local waypoint = data.waypoints[data.waypoint_id]
+			local pos = waypoint.pos
+			pos.y = pos.y + 0.5
+
+			player:set_pos(pos)
+			msg(name, fmt("Teleported to %s", clr("#ff0", waypoint.name)))
+		end
+
+		return set_fs(player)
+	end,
+
+	hide_panels = function(player)
+		local name = player:get_player_name()
+		return core.is_creative_enabled(name)
+	end,
+}
+
+i3.new_tab {
+	name = "items",
+	description = S"Items",
+	formspec = get_items_fs,
+
+	fields = function(player, data, fields)
+		panel_fields(player, data, fields)
+
+		if fields.cancel then
+			reset_data(data)
+
+		elseif fields.key_enter_field == "filter" or fields.search then
+			if fields.filter == "" then
+				reset_data(data)
+				return set_fs(player)
+			end
+
+			local str = lower(fields.filter)
+			if data.filter == str then return end
+
+			data.filter = str
+			data.pagenum = 1
+
+			search(data)
+
+		elseif fields.prev_page or fields.next_page then
+			if data.pagemax == 1 then return end
+			data.pagenum = data.pagenum - (fields.prev_page and 1 or -1)
+
+			if data.pagenum > data.pagemax then
+				data.pagenum = 1
+			elseif data.pagenum == 0 then
+				data.pagenum = data.pagemax
+			end
+		end
+
+		return set_fs(player)
+	end,
+}
+
+local trash = create_inventory("i3_trash", {
+	allow_put = function(_, _, _, stack)
+		return stack:get_count()
+	end,
+	on_put = function(inv, listname, _, _, player)
+		inv:set_list(listname, {})
+
+		local name = player:get_player_name()
+
+		if not core.is_creative_enabled(name) then
+			set_fs(player)
+		end
+	end,
+})
+
+trash:set_size("main", 1)
+
+core.register_on_player_inventory_action(function(player, _, _, info)
+	local name = player:get_player_name()
+
+	if not core.is_creative_enabled(name) and
+	  ((info.from_list == "main"  and info.to_list == "craft") or
+	   (info.from_list == "craft" and info.to_list == "main")  or
+	   (info.from_list == "craftresult" and info.to_list == "main")) then
+		set_fs(player)
+	end
+end)
+
+if rawget(_G, "armor") then
+	__3darmor = true
+	armor:register_on_update(set_fs)
+end
+
+if rawget(_G, "skins") then
+	__skinsdb = true
+	insert(META_SAVES, "skin_id")
+end
+
+if rawget(_G, "awards") then
+	__awards = true
+
+	core.register_on_craft(function(_, player)
+		set_fs(player)
+	end)
+
+	core.register_on_dignode(function(_, _, player)
+		set_fs(player)
+	end)
+
+	core.register_on_placenode(function(_, _, player)
+		set_fs(player)
+	end)
+
+	core.register_on_chat_message(function(name)
+		local player = core.get_player_by_name(name)
+		set_fs(player)
+	end)
+
+	core.register_on_dieplayer(set_fs)
+end
+
+core.register_on_chatcommand(function(name)
+	local player = core.get_player_by_name(name)
+	after(0, set_fs, player)
+end)
+
+i3.register_craft_type("digging", {
+	description = ES"Digging",
+	icon = "i3_steelpick.png",
+})
+
+i3.register_craft_type("digging_chance", {
+	description = ES"Digging (by chance)",
+	icon = "i3_mesepick.png",
+})
+
+i3.add_search_filter("groups", function(item, groups)
+	local def = reg_items[item]
+	local has_groups = true
+
+	for _, group in ipairs(groups) do
+		if not def.groups[group] then
+			has_groups = nil
+			break
+		end
+	end
+
+	return has_groups
+end)
+
+i3.add_search_filter("types", function(item, drawtypes)
+	local t = {}
+
+	for i, dt in ipairs(drawtypes) do
+		t[i] = (dt == "node" and reg_nodes[item] and 1) or
+		       (dt == "item" and reg_craftitems[item] and 1) or
+		       (dt == "tool" and reg_tools[item] and 1) or nil
+	end
+
+	return #t > 0
+end)
+
+--[[	As `core.get_craft_recipe` and `core.get_all_craft_recipes` do not
+	return the fuel, replacements and toolrepair recipes, we have to
+	override `core.register_craft` and do some reverse engineering.
+	See engine's issues #4901, #5745 and #8920.	]]
+
+local old_register_craft = core.register_craft
+local rcp_num = {}
+
+core.register_craft = function(def)
+	old_register_craft(def)
+
+	if def.type == "toolrepair" then
+		toolrepair = def.additional_wear * -100
+	end
+
+	local output = def.output or (true_str(def.recipe) and def.recipe) or nil
+	if not output then return end
+	output = {match(output, "%S+")}
+
+	local groups
+
+	if is_group(output[1]) then
+		groups = extract_groups(output[1])
+		output = groups_to_items(groups, true)
+	end
+
+	for i = 1, #output do
+		local item = output[i]
+		rcp_num[item] = (rcp_num[item] or 0) + 1
+
+		if def.replacements then
+			if def.type == "fuel" then
+				replacements.fuel[item] = def.replacements
+			else
+				replacements[item] = replacements[item] or {}
+				replacements[item][rcp_num[item]] = def.replacements
+			end
+		end
+	end
+end
+
+local old_clear_craft = core.clear_craft
+
+core.clear_craft = function(def)
+	old_clear_craft(def)
+
+	if true_str(def) then
+		return -- TODO
+	elseif is_table(def) then
+		return -- TODO
+	end
+end
+
+local function resolve_aliases(hash)
+	for oldname, newname in pairs(reg_aliases) do
+		cache_recipes(oldname)
+		local recipes = recipes_cache[oldname]
+
+		if recipes then
+			if not recipes_cache[newname] then
+				recipes_cache[newname] = {}
+			end
+
+			local similar
+
+			for i = 1, #recipes_cache[oldname] do
+				local rcp_old = recipes_cache[oldname][i]
+
+				for j = 1, #recipes_cache[newname] do
+					local rcp_new = copy(recipes_cache[newname][j])
+					rcp_new.output = oldname
+
+					if table_eq(rcp_old, rcp_new) then
+						similar = true
+						break
+					end
+				end
+
+				if not similar then
+					insert(recipes_cache[newname], rcp_old)
+				end
+			end
+		end
+
+		if newname ~= "" and recipes_cache[oldname] and not hash[newname] then
+			init_items[#init_items + 1] = newname
+		end
+	end
+end
+
+local function get_init_items()
+	local _select, _preselect = {}, {}
+
+	for name, def in pairs(reg_items) do
+		if name ~= "" and show_item(def) then
+			cache_drops(name, def.drop)
+			cache_fuel(name)
+			cache_recipes(name)
+
+			_preselect[name] = true
+		end
+	end
+
+	for name in pairs(_preselect) do
+		cache_usages(name)
+
+		init_items[#init_items + 1] = name
+		_select[name] = true
+	end
+
+	resolve_aliases(_select)
+	sort(init_items)
+
+	if http and true_str(i3.export_url) then
+		local post_data = {
+			recipes = recipes_cache,
+			usages  = usages_cache,
+		}
+
+		http.fetch_async{
+			url = i3.export_url,
+			post_data = write_json(post_data),
+		}
+	end
+end
+
+on_mods_loaded(function()
+	get_init_items()
+
+	sfinv = rawget(_G, "sfinv")
+
+	if sfinv then
+		sfinv.enabled = false
+	end
+
+	unified_inventory = rawget(_G, "unified_inventory")
+
+	if unified_inventory then
+		old_unified_inventory_fn = unified_inventory.set_inventory_formspec
+		function unified_inventory.set_inventory_formspec() return end
+	end
+end)
+
+local function init_backpack(player)
+	local name = player:get_player_name()
+	local data = pdata[name]
+
+	local player_inv = player:get_inventory()
+	player_inv:set_size("main", INV_SIZE)
+
+	data.bag = create_inventory(fmt("%s_backpack", name), {
+		allow_put = function(inv, listname, _, stack)
+			local empty = inv:get_stack(listname, 1):is_empty()
+
+			if empty and sub(stack:get_name(), 1, 7) == "i3:bag_" then
+				return 1
+			end
+
+			return 0
+		end,
+
+		on_put = function(_, _, _, stack)
+			data.bag_size = match(stack:get_name(), "_(%w+)$")
+			player_inv:set_size("main", BAG_SIZES[data.bag_size])
+			set_fs(player)
+		end,
+
+		on_take = function()
+			for i = INV_SIZE + 1, BAG_SIZES[data.bag_size] do
+				local stack = player_inv:get_stack("main", i)
+
+				if not stack:is_empty() then
+					spawn_item(player, stack)
+				end
+			end
+
+			data.bag_size = nil
+			player_inv:set_size("main", INV_SIZE)
+
+			set_fs(player)
+		end,
+	})
+
+	data.bag:set_size("main", 1)
+
+	if data.bag_size then
+		data.bag:set_stack("main", 1, fmt("i3:bag_%s", data.bag_size))
+		player_inv:set_size("main", BAG_SIZES[data.bag_size])
+	end
+end
+
+local function init_waypoints(player)
+	local name = player:get_player_name()
+	local data = pdata[name]
+
+	for _, v in ipairs(data.waypoints or {}) do
+		local id = player:hud_add {
+			hud_elem_type = "waypoint",
+			name = v.name,
+			text = " m",
+			world_pos = v.pos,
+			number = v.color,
+			z_index = -300,
+		}
+
+		v.id = id
+	end
+end
+
+on_joinplayer(function(player)
+	local name = player:get_player_name()
+	local info = get_player_info(name)
+
+	if get_formspec_version(info) < MIN_FORMSPEC_VERSION then
+		if sfinv then
+			sfinv.enabled = true
+		end
+
+		if unified_inventory then
+			unified_inventory.set_inventory_formspec = old_unified_inventory_fn
+
+			if sfinv then
+				sfinv.enabled = false
+			end
+		end
+
+		return outdated(name)
+	end
+
+	init_data(player, info)
+	init_backpack(player)
+	init_waypoints(player)
+
+	after(0, function()
+		player:hud_set_hotbar_itemcount(HOTBAR_COUNT)
+		player:hud_set_hotbar_image(PNG.hotbar)
+	end)
+end)
+
+core.register_on_dieplayer(function(player)
+	local name = player:get_player_name()
+	local data = pdata[name]
+	if not data then return end
+
+	data.bag_size = nil
+	data.bag:set_list("main", {})
+
+	local inv = player:get_inventory()
+	inv:set_size("main", INV_SIZE)
+
+	set_fs(player)
+end)
+
+on_leaveplayer(function(player)
+	save_meta(player, META_SAVES)
+
+	local name = player:get_player_name()
+	pdata[name] = nil
+end)
+
+on_shutdown(function()
+	local players = get_players()
+
+	for i = 1, #players do
+		local player = players[i]
+		save_meta(player, META_SAVES)
+	end
+end)
+
+on_receive_fields(function(player, formname, fields)
+	if formname ~= "" then
+		return false
+	end
+
+	local name = player:get_player_name()
+	local data = pdata[name]
+	if not data then return end
+
+	for f in pairs(fields) do
+		if sub(f, 1, 4) == "tab_" then
+			local tabname = sub(f, 5)
+			set_tab(player, tabname)
+			break
+		end
+	end
+
+	local tab = tabs[data.current_tab]
+
+	if tab and tab.fields then
+		return true, tab.fields(player, data, fields)
+	end
+
+	return true, set_fs(player)
+end)
+
+core.register_on_player_hpchange(function(player, hpchange)
+	local name = player:get_player_name()
+	local data = pdata[name]
+	if not data then return end
+
+	local hp_max = player:get_properties().hp_max
+	data.hp = min(hp_max, player:get_hp() + hpchange)
+
+	set_fs(player)
+end)
+
+if progressive_mode then
+	local function item_in_inv(item, inv_items)
+		local inv_items_size = #inv_items
+
+		if is_group(item) then
+			local groups = extract_groups(item)
+			for i = 1, inv_items_size do
+				local def = reg_items[inv_items[i]]
+
+				if def then
+					if item_has_groups(def.groups, groups) then
+						return true
+					end
+				end
+			end
+		else
+			for i = 1, inv_items_size do
+				if inv_items[i] == item then
+					return true
+				end
+			end
+		end
+	end
+
+	local function recipe_in_inv(rcp, inv_items)
+		for _, item in pairs(rcp.items) do
+			if not item_in_inv(item, inv_items) then return end
+		end
+
+		return true
+	end
+
+	local function progressive_filter(recipes, player)
+		if not recipes then
+			return {}
+		end
+
+		local name = player:get_player_name()
+		local data = pdata[name]
+
+		if #data.inv_items == 0 then
+			return {}
+		end
+
+		local filtered, c = {}, 0
+
+		for i = 1, #recipes do
+			local recipe = recipes[i]
+			if recipe_in_inv(recipe, data.inv_items) then
+				c = c + 1
+				filtered[c] = recipe
+			end
+		end
+
+		return filtered
+	end
+
+	local item_lists = {"main", "craft", "craftpreview"}
+
+	local function get_inv_items(player)
+		local inv = player:get_inventory()
+		local stacks = {}
+
+		for i = 1, #item_lists do
+			local list = inv:get_list(item_lists[i])
+			table_merge(stacks, list)
+		end
+
+		local inv_items, c = {}, 0
+
+		for i = 1, #stacks do
+			local stack = stacks[i]
+			if not stack:is_empty() then
+				local name = stack:get_name()
+				if reg_items[name] then
+					c = c + 1
+					inv_items[c] = name
+				end
+			end
+		end
+
+		return inv_items
+	end
+
+	local function init_hud(player, data)
+		data.hud = {
+			bg = player:hud_add {
+				hud_elem_type = "image",
+				position      = {x = 0.78, y = 1},
+				alignment     = {x = 1,    y = 1},
+				scale         = {x = 370,  y = 112},
+				text          = PNG.bg,
+				z_index       = 0xDEAD,
+			},
+
+			book = player:hud_add {
+				hud_elem_type = "image",
+				position      = {x = 0.79, y = 1.02},
+				alignment     = {x = 1,    y = 1},
+				scale         = {x = 4,    y = 4},
+				text          = PNG.book,
+				z_index       = 0xDEAD,
+			},
+
+			text = player:hud_add {
+				hud_elem_type = "text",
+				position      = {x = 0.84, y = 1.04},
+				alignment     = {x = 1,    y = 1},
+				number        = 0xffffff,
+				text          = "",
+				z_index       = 0xDEAD,
+			},
+		}
+	end
+
+	local function show_hud_success(player, data)
+		-- It'd better to have an engine function `hud_move` to only need
+		-- 2 calls for the notification's back and forth.
+
+		local hud_info_bg = player:hud_get(data.hud.bg)
+		local dt = 0.016
+
+		if hud_info_bg.position.y <= 0.9 then
+			data.show_hud = false
+			data.hud_timer = (data.hud_timer or 0) + dt
+		end
+
+		if data.show_hud then
+			for _, def in pairs(data.hud) do
+				local hud_info = player:hud_get(def)
+
+				player:hud_change(def, "position", {
+					x = hud_info.position.x,
+					y = hud_info.position.y - (dt / 5)
+				})
+			end
+
+			player:hud_change(data.hud.text, "text",
+				S("@1 new recipe(s) discovered!", data.discovered))
+
+		elseif data.show_hud == false then
+			if data.hud_timer >= HUD_TIMER_MAX then
+				for _, def in pairs(data.hud) do
+					local hud_info = player:hud_get(def)
+
+					player:hud_change(def, "position", {
+						x = hud_info.position.x,
+						y = hud_info.position.y + (dt / 5)
+					})
+				end
+
+				if hud_info_bg.position.y >= 1 then
+					data.show_hud = nil
+					data.hud_timer = nil
+				end
+			end
+		end
+	end
+
+	-- Workaround. Need an engine call to detect when the contents of
+	-- the player inventory changed, instead.
+	local function poll_new_items()
+		local players = get_players()
+		for i = 1, #players do
+			local player = players[i]
+			local name = player:get_player_name()
+			local data = pdata[name]
+
+			local inv_items = get_inv_items(player)
+			local diff = array_diff(inv_items, data.inv_items)
+
+			if #diff > 0 then
+				data.inv_items = table_merge(diff, data.inv_items)
+				local oldknown = data.known_recipes or 0
+				local items = get_filtered_items(player, data)
+				data.discovered = data.known_recipes - oldknown
+
+				if data.show_hud == nil and data.discovered > 0 then
+					data.show_hud = true
+				end
+
+				data.items_raw = items
+				search(data)
+				set_fs(player)
+			end
+		end
+
+		after(POLL_FREQ, poll_new_items)
+	end
+
+	poll_new_items()
+
+	globalstep(function()
+		local players = get_players()
+		for i = 1, #players do
+			local player = players[i]
+			local name = player:get_player_name()
+			local data = pdata[name]
+
+			if data.show_hud ~= nil and singleplayer then
+				show_hud_success(player, data)
+			end
+		end
+	end)
+
+	i3.add_recipe_filter("Default progressive filter", progressive_filter)
+
+	on_joinplayer(function(player)
+		local name = player:get_player_name()
+		local meta = player:get_meta()
+		local data = pdata[name]
+
+		data.inv_items = dslz(meta:get_string "inv_items") or {}
+		data.known_recipes = dslz(meta:get_string "known_recipes") or 0
+
+		local items = get_filtered_items(player, data)
+		data.items_raw = items
+		search(data)
+
+		if singleplayer then
+			init_hud(player, data)
+		end
+	end)
+
+	table_merge(META_SAVES, {"inv_items", "known_recipes"})
+end
+
+local bag_recipes = {
+	small = {
+		{"", "farming:string", ""},
+		{"group:wool", "group:wool", "group:wool"},
+		{"group:wool", "group:wool", "group:wool"},
+	},
+	medium = {
+		{"farming:string", "i3:bag_small", "farming:string"},
+		{"farming:string", "i3:bag_small", "farming:string"},
+	},
+	large = {
+		{"farming:string", "i3:bag_medium", "farming:string"},
+		{"farming:string", "i3:bag_medium", "farming:string"},
+	},
+}
+
+for size, rcp in pairs(bag_recipes) do
+	local bagname = fmt("i3:bag_%s", size)
+
+	core.register_craftitem(bagname, {
+		description = fmt("%s Backpack", size:gsub("^%l", upper)),
+		inventory_image = fmt("i3_bag_%s.png", size),
+		stack_max = 1,
+	})
+
+	core.register_craft {output = bagname, recipe = rcp}
+	core.register_craft {type = "fuel", recipe = bagname, burntime = 3}
+end
+
+--dofile(core.get_modpath("i3") .. "/test_tabs.lua")
+--dofile(core.get_modpath("i3") .. "/test_custom_recipes.lua")
diff --git a/textures_sources.txt b/textures_sources.txt
index 9869de5..419d1fd 100644
--- a/textures_sources.txt
+++ b/textures_sources.txt
@@ -218,3 +218,31 @@ Mod: LessDirt/default
 origin	https://github.com/Treer/LessDirt.git (fetch)
 * master 59d4434 [origin/master] Update forum link in README.md
 Mod: LessDirt/default
+
+origin	https://github.com/Treer/LessDirt.git (fetch)
+* master 59d4434 [origin/master] Update forum link in README.md
+Mod: LessDirt/default
+
+origin	https://github.com/Treer/LessDirt.git (fetch)
+* master 59d4434 [origin/master] Update forum link in README.md
+Mod: LessDirt/default
+
+origin	https://github.com/Treer/LessDirt.git (fetch)
+* master 59d4434 [origin/master] Update forum link in README.md
+Mod: LessDirt/default
+
+origin	https://github.com/Treer/LessDirt.git (fetch)
+* master 59d4434 [origin/master] Update forum link in README.md
+Mod: LessDirt/default
+
+origin	https://github.com/Treer/LessDirt.git (fetch)
+* master 59d4434 [origin/master] Update forum link in README.md
+Mod: LessDirt/default
+
+origin	https://github.com/Treer/LessDirt.git (fetch)
+* master 59d4434 [origin/master] Update forum link in README.md
+Mod: LessDirt/default
+
+origin	https://github.com/Treer/LessDirt.git (fetch)
+* master 59d4434 [origin/master] Update forum link in README.md
+Mod: LessDirt/default