AAAAHHH Thanks a billion! I'm super proud of how the palette came together. I wanted to make it as colorful as possible with the 4 color restriction so each one is a very different hue from each other (literally yellow, red, green and blue). That way I could make each more or less dominant to create the illusion of different colors.
We're definitely thinking of fleshing the game and world out a little bit more so as to have a fuller experience, but we'll see how it pans out once the jam exhaustion wears off.
The layer panning and fullscreen thing is a known issue, the way unity exports html5 games apparently changed so what used to work for us doesn't anymore, we'll fix it post rating period!