They aren't going to do the color wheel in this iteration because that would mean they would have to go back and re-work nearly every object in the game. Do what I did and move on into acceptance and suggest new colors for the objects you want and maybe you'll get what you asked for. I asked for a Grim Reaper type pack that dealt with Wills and Inheritance last year in August and a year and a month later we are getting Life & Death with almost everything I asked for.
Im not afraid to ask for big and little things because you never know what is going to make the game better.