Figment

Click a square to switch the color of it and its neighbors. I suppose it's like "lights out" puzzles but with more square states.

Don't expect much, it was just my first successful project done with an unfamiliar tool.

I categorise this kind of "simple but playable" games a "fidget game" - you can spend a few minutes with it and move on with your day. Sometimes it's all that matters :)