Totally agree about the need of some markers showing goal values. I felt that while setting last stage, but since I knew I had no time for this feature, I tweaked last level the other way around - forcing player to go back. Thought that most logic games rely on memory to some point.
About displaying RGB on the player hmm... it makes sense. Maybe I'll add some way to show/hide values above player instead of UI bars in the corner.
Thanks for feedback!