Hey blumpy,
happy you like it!
I'm actually working on it and am adjusting the MIDI Note colors. I do have these "Separators" prepared and am also working on some track layouts with horizontal meters as well as folder indention in the mixer.
The Colormap is coming soon.
But I'm not sure yet, if I should add the additional layouts to this theme or make a new version called "extended" or so.
My basic idea was to stay as close as possible to the original default theme, with REAPER newcomers in mind. But OTOH, two separators and 2 or 3 more tcp-layouts probably won't overcharge somebody...
Stay tuned!