Yep - in fact, when discussing the idea for CMYK mode it was brought up that we should make it flexible for CieLab and other color modes. Unless someone beats m

Yep - in fact, when discussing the idea for CMYK mode it was brought up that we should make it flexible for CieLab and other color modes. Unless someone beats me to it, I'll likely try to make a merge request with CMYK mode first, then use it as a reference commit for implementing other color models.