After reading your comments, I love your idea for the permanent theme! I'm sorry you didn't have time to implement it according to your original vision. This is a clean, satisfying little experience. Nice work, and I hope you eventually build this into a finished puzzle game.

nice. Only thing I hoped for was an undo for the paint. But I understand. Still great game

Really fun puzzle game! I was having a really hard time with the mouse controls though. It took me a while to figure out you have to drag the mouse while holding the buttons to do anything, and it's very inconsistent in terms of whether or not something happens, and that made things pretty hard to enjoy to the fullest. Despite that there's a great idea here and you should keep at it!