Different LED color for black/white keys

[tomvandeneede]

First of all thanks for a great tool... I have been briefly playing around with PianoLed as it came as a complete set but I never managed to get any of it working. I started looking into the DIY approach and until now it shows very promising.

I miss one thing which most likely this is already possible, but somehow have not been able to identify this here:

As the leds are sometimes slightly misaligned or the parallax of your viewing angle towards the keyboard slightly shifts the apparent led position, I sometimes have difficulties distinguishing between the black and the white keys.

Therefor for me it would be beneficial to be able to select a separate color for the white keys and for the black keys.
Obviously when the left hand and right hand have different colours in learning mode it would require 4 colours