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!
Viewing post in Swatch jam comments
It's actually not inconsistent from my experience at all.
You spawn, don't move and plan your way while making sure the little bar next to the color isn't empty. If you leave your spawn you can't move anymore. To go through the dark lines you can always just paint 2 blocks that are next to each other horizontally or vertically. Also you can always take back the previous colors that you've put down.
It's a fun little game and I had no issues.