Preload all textures

BackgroundSelector.gd

@@ -6,24 +6,15 @@ func _ready() -> void:
 func update_background_list() -> void:
 	clear()
 	var i : int = 0
-	for file in DirAccess.get_files_at("res://Backgrounds"):
-		if file.ends_with(".png.import"):
-			add_item(file.left(-11), i)
-			set_item_metadata(i, "res://Backgrounds/%s" % file.left(-7)) 
-			i += 1
-	for file in DirAccess.get_files_at("user://Backgrounds"):
-		if file.ends_with(".png"):
-			add_item(file.left(-11), i)
-			set_item_metadata(i, "user://Backgrounds/%s" % file)
-			i += 1
+	var keys = Global.Backgrounds.keys()
+	keys.sort()
+	for bg in keys:
+		add_item(bg)
 
 func select_by_name(name : String) -> void:
 	for i in item_count:
 		if get_item_text(i) == name:
 			selected = i
 
-func get_selected_filename() -> String:
-	return get_item_metadata(selected)
-
 func get_selected_text() -> String:
 	return get_item_text(selected)