Latest stable build :
- Alt+Enter switch goes into blackscreen in-game, only the fullscreen startup boot has no issue
- Play the game in fullscreen, go to the top of the level during level 1, you'll have a black sky : (was only able to screenshot it like that)

In window mode, it looks like that :

- Play the level 1, exit the game from menu, main menu will appear with some yellow pixels shining