diff --git a/src/api.lua b/src/api.lua
index e8f818d..7a8d545 100755
--- a/src/api.lua
+++ b/src/api.lua
@@ -217,6 +217,12 @@ end
 -----------------GETTERS----------------------
 ----------------------------------------------
 
+function skins_collectible.get_skins()
+  return loaded_skins
+end
+
+
+
 function skins_collectible.get_skin(skin_ID)
   return loaded_skins[skin_ID]
 end
@@ -236,13 +242,6 @@ end
 
 
 
-function skins_collectible.get_loaded_skins_amount()
-  return #loaded_skins
-end
-
-
-
-
 
 ----------------------------------------------
 -----------------SETTERS----------------------
diff --git a/src/formspec.lua b/src/formspec.lua
index d835843..95f6852 100755
--- a/src/formspec.lua
+++ b/src/formspec.lua
@@ -7,9 +7,8 @@ local locked_skin = {
   description = "???",
   model       = nil,
   texture     = nil,
-  tier        = 1,
-  img         = "blank.png",
-  author      = ""
+  preview     = "skinsc_locked.png",
+  splash_art  = "blank.png"
 }
 
 
@@ -18,14 +17,12 @@ function skins_collectible.get_formspec(p_name, page, skin_ID)
 
   local selected_skin
   local skin_bg
-  local skin_preview
   local skin_stars
 
   -- se la skin è bloccata o meno
   if skin_ID == "LOCKED" then
     selected_skin = locked_skin
     skin_bg = "skinsc_gui_bg_locked.png"
-    skin_preview = "skinsc_locked.png"
     skin_stars = "blank.png"
 
     minetest.get_player_by_name(p_name):get_meta():set_int("skins_collectible:selected_skin_ID", -1)        -- metadato per "Wear" se è bloccata
@@ -33,7 +30,6 @@ function skins_collectible.get_formspec(p_name, page, skin_ID)
   else
     selected_skin = skins_collectible.get_skin(skin_ID)
     skin_bg = "skinsc_gui_bg_tier" .. selected_skin.tier .. ".png"
-    skin_preview = selected_skin.preview
     skin_stars = "skinsc_gui_stars" .. selected_skin.tier .. ".png"
 
     minetest.get_player_by_name(p_name):get_meta():set_int("skins_collectible:selected_skin_ID", skin_ID)    -- metadato per "Wear" se è sbloccata
@@ -46,7 +42,7 @@ function skins_collectible.get_formspec(p_name, page, skin_ID)
     "image[0,0;16.15,9.24;skinsc_gui_overlay.png]",
     -- skin selezionata
     "image[1.95,0.85;1.05,0.15;" .. skin_stars .. "]",
-    "image[1.77,0.92;1.5,2.34;" .. skin_preview .. "]",
+    "image[1.77,0.92;1.5,2.34;" .. selected_skin.preview .. "]",
     -- pulsanti
     "image_button[1.87,3.2;1.3,0.3;skinsc_gui_button_wear.png;WEAR;" .. S("Wear") .. "]",
     "image_button[0.2,6;0.7,1.2;skinsc_gui_arrow_left.png;GO_LEFT;]",
@@ -56,7 +52,7 @@ function skins_collectible.get_formspec(p_name, page, skin_ID)
     "hypertext[3.6,1.25;3.2,2;desc; <global size=12 font=mono halign=justify color=#a05b53><i>" .. FS(selected_skin.description) .. "</i>]"
   }
 
-  local skins_amount = skins_collectible.get_loaded_skins_amount()
+  local skins_amount = #skins_collectible.get_skins()
   local first_idx = (math.floor(skins_amount / 16) + 1) * page
 
   -- creo slot in matrice x*y