I have to say, each time I see the step sequencer running, I keep wishing the MOD, Slide and Accent rows had different backlight colors instead of the same (red) as the Step rows. Like, the MOD row using blue (like the Matrix mode), etc.
It would help visually to have them color-coded, although after a while I guess muscle-memory will make one quickly reach for the right row... but still, I just had to make this comment/suggestion