It's obviously a short experience with limited features, but I mean the mechanics themselves aren't bad. It could be refined into a sort of a puzzle game where you take clues from the environment on how things should be painted/colored etc. 

This game has some neat world art and nicely made animated player sprite. The gameplay overall appears to be very basic because there's no interaction whatsoever apart from the player attack, the color palette controls is a nice addition to the game that changes the player's sword attack color but I don't really see a purpose in it unless if it's using some kind of alchemy magic to get through the game. Also, I kept getting stuck on some objects that I should have never been stuck on but sometimes, I would get out of the glitch by spamming the attack key and it would move me around again. This is definitely not bad, hope this will be a valuable learning experience in future game jams! I mean who knows, perhaps you could make a fully playable mini-game using your own engine one day.