As mentioned in a previous post in this thread, I find that adding track icons and adding different colors to the little strip at the bottom of each track of the console view is enough for me to keep things organized and grouped together. Normally I add the same color of all the track strips that go to one specific Stereo Bus (like I will group my percussion, drums and bass into one group -> Stereo Bus with the same color) It's pretty easy to keep things organized. This will work in any theme.
And changing the color of that little strip on the bottom, will also change the colors of the MIDI notes and audio wave forms in the associated tracks in the Track View. Personally, I like that better. Having all the columns in the Console View with different colors is a bit too colorful to me, I think it looks unprofessional (like a game or something) and is too distracting. Just my humble opinion. (I hope I explained all that so it makes sense)