You were so patient with my game, I just had to play your game all the way till the end. I had to look at your hints only twice, and that is a testament to how it was mostly intuitive; it is quite an elegantly-crafted, polished puzzle-game. the cat animations, the purrs...they were all so charming! the art is a feast for the eyes. if you gave the environment (very subtle) animations the way you did with the cats (slight smoke coming out of houses, plants swaying just slightly), it will make everything feel more alive.
P.S. little things that struck me: the final combination felt like way too many colors, and a little too complicated. but i really loved the intent behind it; unlocking different colors when you are being generous to different cats, and trying to weave a system out of it, creating a build-up using these colors to unlock that one satisfying climax scene; so many things worth appreciating. as a solo-developer, kudos to you! i'm seriously impressed!