Introduces the transparent color. The default is the pink.

inc/init/init.config.lua

@@ -17,7 +17,8 @@ function Config.initial_data()
       blue = 3,
       white = 4,
       item = 7,
-      meter_bg = 1
+      meter_bg = 1,
+      transparent = 12
     },
     timing = {
       minigame_win_duration = 180

inc/sprite/sprite.manager.lua

@@ -3,7 +3,7 @@ local _sprites = {}
 local _active_sprites = {}
 
 local function draw_sprite_instance(sprite_data, params)
-  local colorkey = params.colorkey or sprite_data.colorkey or 0
+  local colorkey = params.colorkey or sprite_data.colorkey or Config.colors.transparent
   local scale = params.scale or sprite_data.scale or 1
   local flip_x = params.flip_x or sprite_data.flip_x or 0
   local flip_y = params.flip_y or sprite_data.flip_y or 0

inc/system/system.main.lua

@@ -7,6 +7,7 @@ local initialized_game = false
 local function init_game()
   if initialized_game then return false end
   Context.reset()
+  poke(0x03FF, 1 << Config.colors.transparent) -- Set the default transparent color in the palette
   Window.set_current("intro_title") -- Set initial window using new manager
   MenuWindow.refresh_menu_items()
   initialized_game = true