Hmm . . . no, we're still not on the same page.
-Preferences | Colors did work in X2 for MIDI track background colors [see screen shot below]
-No, I did not migrate from a pre-X version of Sonar
-Yes - changing a series of clips is less than 14 steps - for one track, one time; but multiply that process by many MIDI tracks and many projects . . . well, you see what I mean. I'd rather set the options and not waste hundreds of clicks getting what I already have with X2.
[I don't mean to belabor the point, but this will mean A LOT of adjusting of MIDI tracks in X3]