Allowed MIDI CC messages on Channel 16 to control
the colour of the LED. Sending a CC 20 message of > 0
puts the firmware into a ‘static colour’ mode (LED is not
controlled by AlphaLive, pressure, or clock), and then CC
messages 21-23 control the RGB values respectively.
Set it so that the LED mode can be set via
AlphaLive too. Eventually I need to set it so
that when LED mode is changed via MIDI
it will tell AlphaLive too, and grey out set the
prefs option accordingly.