I changed the king of property for some color definitions to be Constants (instead of Properties).
In the code, I used things like cmy(0.5,0.0,0.0) and some others.
I never found my way to put these values into the Constant Color Editor
Time to make some changes in this part of the IDE (or for the users to have a conversion tool) ?
OS X 10.10.4cpd
2015r1.