I'm uploading these screen shots to illustrate this request.
Currently, when playing through a song, every region turns very orange. Initially, all the colors are very defined, but as the song progresses, the orange takes over and makes some regions look close to the same. I use regions as segments, where sometimes I add a chorus, a solo whatever to extend the song, or mix it up. With this orange dominance, regions are not very clearly defined anymore, unless you can read the region name. (And when you have many regions, only a few letters can be seen etc.) So selecting specified, played regions becomes much more difficult, especially in bright lighting, for example.
Preference 1: Only playing region gets highlighted, the others keep original color. When region finishes, back to original color.
Preference 2: No change in regions colors as the song progresses as we have a very visible progress bar. Maybe region playing could be framed, no highlighting.

