Quoted from Goronic:I went with transparent rubbers throughout except flippers which I did green. To be honest they are much like the white (on initial look) - but the rubbers tend to 'hold' the color of the surrounding LED colors instead of appearing white.
I've also started replacing my rubbers with transparent and like the look. The exception is the green for the bottom flippers and blue for the upper flipper to try to match the playfield.