Generate item slot images on the fly

mods/HUD/mcl_inventory/creative.lua

@@ -325,11 +325,16 @@ mcl_inventory.set_creative_formspec = function(player, start_i, pagenum, inv_siz
 
 			-- Survival inventory slots
 			main_list = "list[current_player;main;0,3.75;9,3;9]"..
+				mcl_formspec.get_itemslot_bg(0,3.75,9,3)..
 				-- armor
 				"list[detached:"..playername.."_armor;armor;2.5,1.3;1,1;1]"..
 				"list[detached:"..playername.."_armor;armor;2.5,2.75;1,1;2]"..
 				"list[detached:"..playername.."_armor;armor;5.5,1.3;1,1;3]"..
 				"list[detached:"..playername.."_armor;armor;5.5,2.75;1,1;4]"..
+				mcl_formspec.get_itemslot_bg(2.5,1.3,1,1)..
+				mcl_formspec.get_itemslot_bg(2.5,2.75,1,1)..
+				mcl_formspec.get_itemslot_bg(5.5,1.3,1,1)..
+				mcl_formspec.get_itemslot_bg(5.5,2.75,1,1)..
 				armor_slot_imgs..
 				-- player preview
 				player_preview..
@@ -354,6 +359,7 @@ mcl_inventory.set_creative_formspec = function(player, start_i, pagenum, inv_siz
 		else
 			-- Creative inventory slots
 			main_list = "list[detached:creative_"..playername..";main;0,1.75;9,5;"..tostring(start_i).."]"..
+				mcl_formspec.get_itemslot_bg(0,1.75,9,5)..
 			-- Page buttons
 				"label[9.0,5.5;"..F(S("@1/@2", pagenum, pagemax)).."]"..
 				"image_button[9.0,6.0;0.7,0.7;crafting_creative_prev.png;creative_prev;]"..
@@ -412,6 +418,7 @@ mcl_inventory.set_creative_formspec = function(player, start_i, pagenum, inv_siz
 			"tooltip[nix;"..F(filtername["nix"]).."]"..
 			caption..
 			"list[current_player;main;0,7;9,1;]"..
+			mcl_formspec.get_itemslot_bg(0,7,9,1)..
 			main_list..
 			tab(name, "food") ..
 			"tooltip[food;"..F(filtername["food"]).."]"..
@@ -429,6 +436,7 @@ mcl_inventory.set_creative_formspec = function(player, start_i, pagenum, inv_siz
 			tab(name, "inv") ..
 			"tooltip[inv;"..F(filtername["inv"]).."]"..
 			"list[detached:trash;main;9,7;1,1;]"..
+			mcl_formspec.get_itemslot_bg(9,7,1,1)..
 			"image[9,7;1,1;crafting_creative_trash.png]"..
 			listrings
 

mods/HUD/mcl_inventory/depends.txt

@@ -1,4 +1,5 @@
 mcl_init
+mcl_formspec
 mcl_player?
 _mcl_autogroup?
 mcl_armor?

mods/HUD/mcl_inventory/init.lua

@@ -96,6 +96,10 @@ local function set_inventory(player, armor_change_only)
 	"list[detached:"..player_name.."_armor;armor;0,1;1,1;2]"..
 	"list[detached:"..player_name.."_armor;armor;0,2;1,1;3]"..
 	"list[detached:"..player_name.."_armor;armor;0,3;1,1;4]"..
+	mcl_formspec.get_itemslot_bg(0,0,1,1)..
+	mcl_formspec.get_itemslot_bg(0,1,1,1)..
+	mcl_formspec.get_itemslot_bg(0,2,1,1)..
+	mcl_formspec.get_itemslot_bg(0,3,1,1)..
 	armor_slot_imgs..
 	-- craft and inventory
 	"label[0,4;"..F(minetest.colorize("#313131", S("Inventory"))).."]"..
@@ -104,6 +108,10 @@ local function set_inventory(player, armor_change_only)
 	"label[4,0.5;"..F(minetest.colorize("#313131", S("Crafting"))).."]"..
 	"list[current_player;craft;4,1;2,2]"..
 	"list[current_player;craftpreview;7,1.5;1,1;]"..
+	mcl_formspec.get_itemslot_bg(0,4.5,9,3)..
+	mcl_formspec.get_itemslot_bg(0,7.74,9,1)..
+	mcl_formspec.get_itemslot_bg(4,1,2,2)..
+	mcl_formspec.get_itemslot_bg(7,1.5,1,1)..
 	-- crafting guide button
 	"image_button[4.5,3;1,1;craftguide_book.png;__mcl_craftguide;]"..
 	"tooltip[__mcl_craftguide;"..F(S("Recipe book")).."]"..