I know, that we can colour the channels, tracks, clips etc. What would be nice is, to have the faders for Aux, Sub and VCA channels in a colour, other than the standard Grey. It saves steps when setting your mix up. It could be a user-definable situation. We already have the fader of the record-armed track showing red, so, it shouldn't be difficult to do.
Actually, we can go the full distance and have all the faders of the various track types in different colours. Cubendo has it.
What do the members think?