I originally planned something to do with them, but I cut it due to time constraints. Now they just have special aesthetic effects on the fish.
Fun fact: you can complete all of the color requests using only the rainbow odd seed! The color it gives you is random though, so it would probably take a while.
I would be interested in some kind of extended "directors cut" of some kind in the future if possible. The garden management kind of thing you got going with the fish and exploration focused gameplay loop in this game really scratches an itch for me. As does the mysterious and melancholy story and atmosphere.
