Today I did some experiments with RGB LEDs, e.g. to evaluate Andy's idea to use a single RGB LED as replacement for LED rings around encoders: http://midibox.org/forums/topic/19619-alternative-to-led-encoder-rings-illuminated-red-green-encoders/ Outcome: a LED matrix configuration doesn't give us enough brightness levels. E.g. I tried a 4x8 matrix which allows 8 brightness levels for each color, but it turned out that dim values above 4 (50%) don't make a big difference anymore, accordingly the