In X2 I've noticed that Cakewalk inadvertantly misnamed several color choices making it seem like they do nothing when they really do. I'm making a list of them as I find new ones.
Preferences - Customization - Colors "Console View Strip Label Text" = "Peak Marker (< 0dB)" & SENDS Module number in CV
(no actual listing for SENDS Module number above) "Console Segmented VU Tick Marks" = DEAD
(no longer used) "Header" = Track View Clip Header bar
"Header (Selected)" = Track View Clip Header bar (Selected)
"Peak Marker (< 0dB)" = DEAD
(see above) "Peak Marker (>= 0dB)" = DEAD
(see below) "Peak Marker Text" = DEAD
(no longer used?) "Track View Header Peak Text" = Peak Marker (< 0dB) in TV
"Track View Header Warning Text" = "Peak Marker (>= 0dB)" in TV & CV
Not found in Preferences but listed in the registry: "Toolbar Background*" = Tracks Pane Boarder
"Time Ruler Background"
No longer used: "MIDI Tracks, x, xx, xx, Background"