I guess I don't understand why matching the header and channel color is an issue ? But then I don't deal with that many tracks, and I tend to use Routing folders that are a version (darker or lighter) of same color as the associated tracks in them , to differentiate different groups that are in the same musical categories
So for example below all my guitar tracks are light powder blue their routing folders are a darker blue the VI folder is bright yellow the instrument tracks in that folder are a light green the vocals are magenta etc.
Sorry about the un resized bottom but is more like the color difference and clarity I see on my screen
