Thanks for playing!! I'm glad you liked the puzzles. I'm definitely glad I added custom colors and different options, it's kind of like fun visuals that double as free accessibility settings haha. I'm sorry to hear the custom color options weren't working how you expected - I should've clarified the UI but didn't really have time. Each of the red, blue, green, and value "heart" pieces are sliders, so you can click and drag each individual one to customize each color. Just clicking one while they're in their default positions makes the color black since the values are 0 by default. Hopefully that helps!! If you tried that and it didn't work then that's definitely a bug lol. If I keep working on this game in the future I'll try to clean things up a bit :) Thanks for playing!!!! :D