I can't believe BIAB has been out for 3 decades
and hasn't implemented a colour-coded system yet.
I know it isn't a DAW, but there's a reason nearly all DAWs allow colour coding. being able to customize with colours certainly speeded up my workflow. And, not only that, but It's also a godsend for people with impaired vision.
My songs tend to be quite long, and the more info on the screen the more the eye strain, especially with it being all the same colour, IMO.
A dark mode would be great, also

Band in a box 2024, Build 1114, Windows 10, 32 GB RAM, Intel Core i5-940F 2.9 GHz