Small tweaks, optimized textures

Readme.md

@@ -13,13 +13,14 @@ Code licensed under the [GPLv3](https://www.gnu.org/licenses/gpl-3.0.en.html) fo
 
 Written by Lars Mueller alias LMD or appguru(eu).
 
-Media licenses (files in the `media` folder) :
+Media licenses (files in the `media` folder):
+
 * `character.obj` - [CC BY-SA 3.0](https://github.com/minetest/minetest_game/tree/master/mods/player_api/README.txt), by MirceaKitsune & stujones11
 * `character.png` - [CC BY-SA 3.0](https://github.com/minetest/minetest_game/tree/master/mods/player_api/README.txt), by Jordach
 * `colors.txt` - [BSD 2-Clause "Simplified" License](https://github.com/minetest/minetestmapper/blob/master/COPYING), by sfan5
 * `wool.txt` - derived from `colors.txt`, same license
 
-Logo license (`logo.png`) : derived from `character.png` by Jordach (see above), same license (CC BY-SA 3.0), rendering & modifications by me (LMD)
+Logo license (`logo.png`): derived from `character.png` by Jordach (see above), same license (CC BY-SA 3.0), rendering & modifications by me (LMD)
 
 ## Links
 

conf.lua

@@ -1,10 +1,12 @@
-local int = function(value) if value % 1 ~= 0 then return "Integer instead of float expected." end end
+-- TODO func = int is deprecated and only kept for compatibility
+local int = function(value) if value % 1 ~= 0 then return "Integer instead of float expected" end end
 local conf_spec = {
     type = "table",
     children = {
         max_precision = {
             type = "number",
-            func = function(value) if value % 1 ~= 0 then return "Integer instead of float expected." end end
+            int = true,
+            func = int
         },
         download = {
             type = "boolean"
@@ -21,26 +23,31 @@ local conf_spec = {
                 precision = {
                     type = "number",
                     range = {1, 100},
+                    int = true,
                     func = int
                 },
                 dithering = {
                     type = "number",
                     range = {1, 10},
+                    int = true,
                     func = int
                 },
                 placement = {
                     type = "number",
                     range = {1, 3},
+                    int = true,
                     func = int
                 },
                 color_choosing = {
                     type = "number",
                     range = {1, 2},
+                    int = true,
                     func = int
                 },
                 filtering = {
                     type = "number",
                     range = {1, 2},
+                    int = true,
                     func = int
                 }
             }