Many controllers have a set of LED pads in colors that change. I have the Traktor F1 and have been working on mapping it (inspired by Endo’s mapping for Traktor https://www.youtube.com/watch?v=QC3PB…) but have seen other programs do certain things with .
For example, in Serato’s slice mode you can set your LED pads to blink to indicate which slice is playing. As seen in this link: https://www.youtube.com/watch?v=ONXn1…
Just an idea, not the most important thing, but it would be nice to have!
Slice mode could use some love too, a quantize option would be really really useful.