it felt good to play, which can be hard to do with platformers.
you made the limited art style work for the game. it communicates what you need to know about the game very effectively, and it looks good and cohesive.
the mechanic was interesting and fun to play with. also, it could have been nice to have a faint preview of where the differently colored platforms are going to be. sometimes it felt like I was jumping in the dark, which was frustrating, but it wasn’t a problem in most of the game. I mean, I still made it to the end.
it is a fun, short game. props for using pygame (pygame was what got me into game development in the first place, but I never got to your level with it).