diff --git a/mods/CORE/mcl_formspec_prepend/init.lua b/mods/CORE/mcl_formspec_prepend/init.lua
deleted file mode 100644
index 8babbd72..00000000
--- a/mods/CORE/mcl_formspec_prepend/init.lua
+++ /dev/null
@@ -1,6 +0,0 @@
-minetest.register_on_joinplayer(function(player)
-	local bg = ""--"bgcolor[#080808BB;true]"
-	local slots = "listcolors[#9990;#FFF7;#FFF0;#000;#FFF]"
-	local prepend = bg .. slots
---	player:set_formspec_prepend(prepend)
-end)
diff --git a/mods/CORE/mcl_formspec_prepend/mod.conf b/mods/CORE/mcl_formspec_prepend/mod.conf
deleted file mode 100644
index b724158a..00000000
--- a/mods/CORE/mcl_formspec_prepend/mod.conf
+++ /dev/null
@@ -1,2 +0,0 @@
-name = mcl_formspec_prepend
-description = Set formspec prepend string for all players
diff --git a/mods/CORE/mcl_init/init.lua b/mods/CORE/mcl_init/init.lua
index fda683e0..de50bf00 100644
--- a/mods/CORE/mcl_init/init.lua
+++ b/mods/CORE/mcl_init/init.lua
@@ -1,6 +1,13 @@
 -- Some global variables (don't overwrite them!)
 mcl_vars = {}
 
+--- GUI / inventory menu colors
+mcl_vars.gui_slots = "listcolors[#9990;#FFF7;#FFF0;#000;#FFF]"
+mcl_vars.gui_bg = "bgcolor[#080808BB;true]"
+mcl_vars.gui_bg_img = ""
+
+mcl_vars.inventory_header = mcl_vars.gui_slots .. mcl_vars.gui_bg
+
 -- Mapgen variables
 local mg_name = minetest.get_mapgen_setting("mg_name")
 local minecraft_height_limit = 256
diff --git a/mods/ENTITIES/mobs_mc/villager.lua b/mods/ENTITIES/mobs_mc/villager.lua
index d96dfd16..e2d91310 100644
--- a/mods/ENTITIES/mobs_mc/villager.lua
+++ b/mods/ENTITIES/mobs_mc/villager.lua
@@ -491,6 +491,7 @@ local function show_trade_formspec(playername, trader, tradenum)
 	"size[9,8.75]"
 	.."background[-0.19,-0.25;9.41,9.49;mobs_mc_trading_formspec_bg.png]"
 	..disabled_img
+	..mcl_vars.inventory_header
 	.."label[4,0;"..minetest.formspec_escape(profession).."]"
 	.."list[current_player;main;0,4.5;9,3;9]"
 	.."list[current_player;main;0,7.74;9,1;]"
diff --git a/mods/HELP/mcl_craftguide/init.lua b/mods/HELP/mcl_craftguide/init.lua
index a8c75cbf..6b3d4132 100644
--- a/mods/HELP/mcl_craftguide/init.lua
+++ b/mods/HELP/mcl_craftguide/init.lua
@@ -315,6 +315,8 @@ function craftguide:get_formspec(player_name, is_fuel)
 	data.pagemax = max(1, ceil(#data.items / ipp))
 
 	local formspec = "size["..data.iX..","..(iY+3)..".6;]"..
+			mcl_vars.gui_slots ..
+			mcl_vars.gui_bg ..
 			[=[background[1,1;1,1;craftguide_bg.png;true]
 			button[2.4,0.21;0.8,0.5;search;?]
 			button[3.05,0.21;0.8,0.5;clear;X]
diff --git a/mods/HUD/mcl_inventory/creative.lua b/mods/HUD/mcl_inventory/creative.lua
index e7d09ce0..536cc56a 100644
--- a/mods/HUD/mcl_inventory/creative.lua
+++ b/mods/HUD/mcl_inventory/creative.lua
@@ -378,6 +378,7 @@ mcl_inventory.set_creative_formspec = function(player, start_i, pagenum, inv_siz
 		end
 
 		formspec = "size[10,9.3]"..
+			mcl_vars.inventory_header..
 			"background[-0.19,-0.25;10.5,9.87;"..inv_bg.."]"..
 			"label[-5,-5;"..name.."]"..
 			tab(name, "blocks") ..
diff --git a/mods/HUD/mcl_inventory/init.lua b/mods/HUD/mcl_inventory/init.lua
index cea5ffd0..bed3c485 100644
--- a/mods/HUD/mcl_inventory/init.lua
+++ b/mods/HUD/mcl_inventory/init.lua
@@ -86,6 +86,7 @@ local function set_inventory(player, armor_change_only)
 
 	local form = "size[9,8.75]"..
 	"background[-0.19,-0.25;9.41,9.49;crafting_formspec_bg.png]"..
+	mcl_vars.inventory_header..
 	player_preview..
 	--armor
 	"list[detached:"..player_name.."_armor;armor;0,0;1,1;1]"..
diff --git a/mods/ITEMS/REDSTONE/mcl_dispensers/depends.txt b/mods/ITEMS/REDSTONE/mcl_dispensers/depends.txt
index a6648be2..c17d2db0 100644
--- a/mods/ITEMS/REDSTONE/mcl_dispensers/depends.txt
+++ b/mods/ITEMS/REDSTONE/mcl_dispensers/depends.txt
@@ -1,3 +1,4 @@
+mcl_init
 mesecons
 mcl_sounds
 mcl_tnt
diff --git a/mods/ITEMS/REDSTONE/mcl_dispensers/init.lua b/mods/ITEMS/REDSTONE/mcl_dispensers/init.lua
index 98b297a4..2c3c6b78 100644
--- a/mods/ITEMS/REDSTONE/mcl_dispensers/init.lua
+++ b/mods/ITEMS/REDSTONE/mcl_dispensers/init.lua
@@ -13,6 +13,7 @@ local setup_dispenser = function(pos)
 	-- Set formspec and inventory
 	local form = "size[9,8.75]"..
 	"background[-0.19,-0.25;9.41,9.49;crafting_inventory_9_slots.png]"..
+	mcl_vars.inventory_header..
 	"image[3,-0.2;5,0.75;mcl_dispensers_fnt_dispenser.png]"..
 	"list[current_player;main;0,4.5;9,3;9]"..
 	"list[current_player;main;0,7.74;9,1;]"..
diff --git a/mods/ITEMS/REDSTONE/mcl_droppers/depends.txt b/mods/ITEMS/REDSTONE/mcl_droppers/depends.txt
index 3abc2f24..d8d7ca50 100644
--- a/mods/ITEMS/REDSTONE/mcl_droppers/depends.txt
+++ b/mods/ITEMS/REDSTONE/mcl_droppers/depends.txt
@@ -1,3 +1,4 @@
+mcl_init
 mesecons
 mcl_util
 doc?
diff --git a/mods/ITEMS/REDSTONE/mcl_droppers/init.lua b/mods/ITEMS/REDSTONE/mcl_droppers/init.lua
index baa453e7..be42e79a 100644
--- a/mods/ITEMS/REDSTONE/mcl_droppers/init.lua
+++ b/mods/ITEMS/REDSTONE/mcl_droppers/init.lua
@@ -13,6 +13,7 @@ local setup_dropper = function(pos)
 	-- Set formspec and inventory
 	local form = "size[9,8.75]"..
 	"background[-0.19,-0.25;9.41,9.49;crafting_inventory_9_slots.png]"..
+	mcl_vars.inventory_header..
 	"image[3,-0.2;5,0.75;mcl_droppers_fnt_dropper.png]"..
 	"list[current_player;main;0,4.5;9,3;9]"..
 	"list[current_player;main;0,7.74;9,1;]"..
diff --git a/mods/ITEMS/mcl_anvils/depends.txt b/mods/ITEMS/mcl_anvils/depends.txt
index a2749e99..021df7cb 100644
--- a/mods/ITEMS/mcl_anvils/depends.txt
+++ b/mods/ITEMS/mcl_anvils/depends.txt
@@ -1,3 +1,4 @@
+mcl_init
 mcl_sounds
 mcl_core?
 screwdriver?
diff --git a/mods/ITEMS/mcl_anvils/init.lua b/mods/ITEMS/mcl_anvils/init.lua
index 790541cb..8b3717a3 100644
--- a/mods/ITEMS/mcl_anvils/init.lua
+++ b/mods/ITEMS/mcl_anvils/init.lua
@@ -15,6 +15,7 @@ local function get_anvil_formspec(set_name)
 	end
 	return "size[9,8.75]"..
 	"background[-0.19,-0.25;9.41,9.49;mcl_anvils_inventory.png]"..
+	mcl_vars.inventory_header..
 	"list[current_player;main;0,4.5;9,3;9]"..
 	"list[current_player;main;0,7.74;9,1;]"..
 	"list[context;input;1,2.5;1,1;]"..
diff --git a/mods/ITEMS/mcl_beds/functions.lua b/mods/ITEMS/mcl_beds/functions.lua
index e9109481..0f571609 100644
--- a/mods/ITEMS/mcl_beds/functions.lua
+++ b/mods/ITEMS/mcl_beds/functions.lua
@@ -196,7 +196,7 @@ end
 
 local function update_formspecs(finished)
 	local ges = #minetest.get_connected_players()
-	local form_n = "size[8,15;true]no_prepend[]"
+	local form_n = "size[8,15;true]"
 	local all_in_bed = ges == player_in_bed
 	local night_skip = is_night_skip_enabled()
 	local button_leave = "button_exit[2,12;4,0.75;leave;Leave bed]"
diff --git a/mods/ITEMS/mcl_chests/depends.txt b/mods/ITEMS/mcl_chests/depends.txt
index 11402413..cd00aa22 100644
--- a/mods/ITEMS/mcl_chests/depends.txt
+++ b/mods/ITEMS/mcl_chests/depends.txt
@@ -1,3 +1,4 @@
+mcl_init
 mcl_core
 mcl_sounds
 mcl_end
diff --git a/mods/ITEMS/mcl_chests/init.lua b/mods/ITEMS/mcl_chests/init.lua
index 770e05ba..57c991ce 100644
--- a/mods/ITEMS/mcl_chests/init.lua
+++ b/mods/ITEMS/mcl_chests/init.lua
@@ -170,6 +170,7 @@ minetest.register_node("mcl_chests:"..basename, {
 		minetest.show_formspec(clicker:get_player_name(),
 		"mcl_chests:"..formspec_basename.."_"..pos.x.."_"..pos.y.."_"..pos.z,
 		"size[9,8.75]"..
+		mcl_vars.inventory_header..
 		"background[-0.19,-0.25;9.41,10.48;mcl_chests_inventory_chest.png]"..
 		"image[0,-0.2;5,0.75;mcl_chests_fnt_chest.png]"..
 		"list[nodemeta:"..pos.x..","..pos.y..","..pos.z..";main;0,0.5;9,3;]"..
@@ -292,6 +293,7 @@ minetest.register_node("mcl_chests:"..basename.."_left", {
 		"mcl_chests:"..formspec_basename.."_"..pos.x.."_"..pos.y.."_"..pos.z,
 		"size[9,11.5]"..
 		"background[-0.19,-0.25;9.41,12.5;mcl_chests_inventory_chest_large.png]"..
+		mcl_vars.inventory_header..
 		"list[nodemeta:"..pos.x..","..pos.y..","..pos.z..";main;0,0.5;9,3;]"..
 		"list[nodemeta:"..pos_other.x..","..pos_other.y..","..pos_other.z..";main;0,3.5;9,3;]"..
 		"list[current_player;main;0,7.5;9,3;9]"..
@@ -413,6 +415,7 @@ minetest.register_node("mcl_chests:"..basename.."_right", {
 
 		"size[9,11.5]"..
 		"background[-0.19,-0.25;9.41,12.5;mcl_chests_inventory_chest_large.png]"..
+		mcl_vars.inventory_header..
 		"list[nodemeta:"..pos_other.x..","..pos_other.y..","..pos_other.z..";main;0,0.5;9,3;]"..
 		"list[nodemeta:"..pos.x..","..pos.y..","..pos.z..";main;0,3.5;9,3;]"..
 		"list[current_player;main;0,7.5;9,3;9]"..
@@ -615,6 +618,7 @@ minetest.register_node("mcl_chests:ender_chest", {
 		local meta = minetest.get_meta(pos)
 		meta:set_string("formspec", 
 				"size[9,8.75]"..
+				mcl_vars.inventory_header..
 				"background[-0.19,-0.25;9.41,10.48;mcl_chests_inventory_chest.png]"..
 				"image[0,-0.2;5,0.75;mcl_chests_fnt_ender_chest.png]"..
 				"list[current_player;enderchest;0,0.5;9,3;]"..
@@ -709,6 +713,7 @@ for color, desc in pairs(boxtypes) do
 			local meta = minetest.get_meta(pos)
 			meta:set_string("formspec",
 					"size[9,8.75]"..
+					mcl_vars.inventory_header..
 					"background[-0.19,-0.25;9.41,10.48;mcl_chests_inventory_chest.png]"..
 					"image[0,-0.2;5,0.75;mcl_chests_fnt_shulker_box.png]"..
 					"list[current_name;main;0,0.5;9,3;]"..
diff --git a/mods/ITEMS/mcl_crafting_table/depends.txt b/mods/ITEMS/mcl_crafting_table/depends.txt
index 3d96266d..e3b8528c 100644
--- a/mods/ITEMS/mcl_crafting_table/depends.txt
+++ b/mods/ITEMS/mcl_crafting_table/depends.txt
@@ -1 +1,2 @@
+mcl_init
 mcl_sounds
diff --git a/mods/ITEMS/mcl_crafting_table/init.lua b/mods/ITEMS/mcl_crafting_table/init.lua
index 72ea0a8c..37dc74a2 100644
--- a/mods/ITEMS/mcl_crafting_table/init.lua
+++ b/mods/ITEMS/mcl_crafting_table/init.lua
@@ -14,6 +14,7 @@ minetest.register_node("mcl_crafting_table:crafting_table", {
 
 		local form = "size[9,8.75]"..
 		"background[-0.19,-0.25;9.41,9.49;crafting_formspec_bg.png^crafting_inventory_workbench.png]"..
+		mcl_vars.inventory_header..
 		"list[current_player;main;0,4.5;9,3;9]"..
 		"list[current_player;main;0,7.74;9,1;]"..
 		"list[current_player;craft;1.75,0.5;3,3;]"..
diff --git a/mods/ITEMS/mcl_furnaces/depends.txt b/mods/ITEMS/mcl_furnaces/depends.txt
index 017e4fb6..441fdfde 100644
--- a/mods/ITEMS/mcl_furnaces/depends.txt
+++ b/mods/ITEMS/mcl_furnaces/depends.txt
@@ -1,3 +1,4 @@
+mcl_init
 mcl_core
 mcl_sounds
 mcl_craftguide
diff --git a/mods/ITEMS/mcl_furnaces/init.lua b/mods/ITEMS/mcl_furnaces/init.lua
index a81a86b3..9a8804fd 100644
--- a/mods/ITEMS/mcl_furnaces/init.lua
+++ b/mods/ITEMS/mcl_furnaces/init.lua
@@ -6,6 +6,7 @@
 local function active_formspec(fuel_percent, item_percent)
 	return "size[9,8.75]"..
 	"background[-0.19,-0.25;9.41,9.49;crafting_inventory_furnace.png]"..
+	mcl_vars.inventory_header..
 	"list[current_player;main;0,4.5;9,3;9]"..
 	"list[current_player;main;0,7.74;9,1;]"..
 	"list[current_name;src;2.75,0.5;1,1;]"..
@@ -28,6 +29,7 @@ end
 
 local inactive_formspec = "size[9,8.75]"..
 	"background[-0.19,-0.25;9.41,9.49;crafting_inventory_furnace.png]"..
+	mcl_vars.inventory_header..
 	"list[current_player;main;0,4.5;9,3;9]"..
 	"list[current_player;main;0,7.74;9,1;]"..
 	"list[current_name;src;2.75,0.5;1,1;]"..
diff --git a/mods/ITEMS/mcl_hoppers/init.lua b/mods/ITEMS/mcl_hoppers/init.lua
index cced02c6..c7f7b0b9 100644
--- a/mods/ITEMS/mcl_hoppers/init.lua
+++ b/mods/ITEMS/mcl_hoppers/init.lua
@@ -6,6 +6,7 @@ local chest = minetest.get_content_id("mcl_chests:chest")
 local mcl_hoppers_formspec =
 	"size[9,7]"..
 	"background[-0.19,-0.25;9.41,10.48;mcl_hoppers_inventory.png]"..
+	mcl_vars.inventory_header..
 	"list[current_name;main;2,0.5;5,1;]"..
 	"list[current_player;main;0,2.5;9,3;9]"..
 	"list[current_player;main;0,5.74;9,1;]"..