Personally…
I cheat…
The DMX binding has a colour picker that offers 3 x dimmers and a colour picker.
I link the 4 items to that colour picker and everything works well 
(I do have plenty of DMX kit around the house, so it’s no extra work to have 3 DMX channels taken up by this)
As I say, it’s a cheat. But it works well.
Also means I can run colour chases against the same three DMX channels that the colour picker uses