I like the ability to do per key and per-profile RGB and I also like to play around with it. I made a bunch of different color schemes like color gradients or specific designs for my typing layer and copying them over to other profiles is a real pain.
Either I have to duplicate the profile, then change settings related to rapid trigger and actuation point to match the game I intended the profile to be for and replace the old profile with the duplicated one or I have to manually copy the colors over to the profile where I made game-specific rapid trigger and actuation point settings, depending on which of the two is less effort.
I would love the ability to copy a color layer to a profile, especially for my macro layer (which, when I change it, I currently replicate the change across all profiles) or have a way of independently copying the rapid trigger / actuation point settings. Maybe also the ability to "link" color settings on a per-layer basis, much like in the Remap tab of Wootility.