slartabartfast
I can see how users who are getting bored with music and have some design talents would want to jazz up their own interface
There is actually a very utilitarian aspect. I've made the timeline much more readable, and done things like change the mono/stereo interleave button so the mono symbol is red. I usually don't want mono, so this makes it easy to parse which channels are mono when looking over the console view. Ditto in phase/out of phase. This kind of tweak takes very little time with the theme editor.
I really hope the theme nonsense is not going to take any more development time or money than it already has.
The tool already existed for Cakewalk to develop the user interface. All they really needed to do was make it public-friendly. I don't think people working on things like bug fixes and such are doing the themes.