For some time I thought I was the only colour-blind person here, but in fact there seems been a consensus on the Logik board for an alternate piece set which is not colour-based.

Numbers or letters written on circles have been suggested. Letters would probably be best, as numbers might get confused with the number of clues or the number of pegs of one colour ("three Bs" is easier to manage than "three 2s").

I like Logik, but with the present colours the game is barely playable for me. I am either destroying my eyes, either right-clicking on all grey and pink pegs, either both.