Color Puzzle

how do I start the game? I'm stuck in the "stage-level" thing at the start

It would get 5 stars if you didn't have to reset the progress on each level back to stage 1. Otherwise 3 stars.

It's hard to see how many stages are necessary for a color when you add in diagonals.

Good game, but we really need more checkpoints. It is not fun to do the same part over and over again, because you make a little mistake.

restarting because of the vague explanations with zero possibility of trial and error...