[scrozier]

While we certainly run into Fbs or G##s, they are relatively rare. I don't think they undo the visual cue of seeing G# and knowing that's a black key. But you might be right. After all, if we're playing in the key of E, G#s are not notated other than in the key signature (and some other exceptions that don't really matter here). So yeah, maybe accidentals <-> black keys isn't such a big deal.