scook
At the time strip color was introduced, themes were not even in the planning phase. Because of design decisions made to implement strip color, themes and strip colors are mutually exclusive. There might come a day when strip color is rewritten to work with themes. Until then forget about trying to force strip color (header or full strip) into a theme unless you have a lot of time and are prepared to fail. For now, the only partial solution when using a custom theme is the same solution offered when the X series did not have colored strips (remember then). Here is the thread I recall about the subject http://forum.cakewalk.com/FindPost/2882038 (spoiler: it is colored track icons).
Oh, dude... This is like having to choose between egg OR bacon :O
No, but seriously. I love what is happening with Sonar. I also love the theme editor (more correct; I love that people that is way better than me can make great themes that I can use). I have no intention coming of unhappy with this product, because I am absolutely not! Just hoping that colored strips one day will be an option :)
Thanks for your reply :)