How to set the background image to a custom-uploaded image

I went to the ‘advanced’ section in Arcade, and then I went to the ‘+ Extensions’ section, then I uploaded an image. Is it possible to use it in my game, or does it even upload it at all? I don’t understand this part of arcade :slight_smile: Any help is appreciated!

It is not possible to upload images.

Oh, then I must’ve been reading the print wrong :smiley: Sorry, guys!