Thanks a lot for your really good suggestions. One thing in the beginning, i think you oversaw the colorpalette with an arrow on the top right, which tells you the colors in their order.
You are right, the levels are mostly verry easy, which is a thing i wanted to make better in the jam also. It was my first puzzle game and i didnt really know the concept and the best conditions to make such a game. That leaded me later struggling a bit with bringing up new level ideas, which are actually harder to get for the player. That also is why there are only five levels, which indeed wasnt a problem for me, because i wanted to make an short and enjoyable game, which does not take to long and does not bore the player to much with long story, complicated controlls or even hard to understand rules, with which it would probably have been easier to make harder levels.