I can't set my game's window backgroun image.
This is what I have tried:
mainbg = Sky(texture = 'Assets/ruined_city_main_bg')
But that was incomprehensible and scary. Also I have tried:
mainbg = Entity(parent = camera.ui, '''All other arguments''', texture = 'Assets/ruined_city_main_bg', position = (0, 0))
The "ENTITY BG" is not showing.