Thanks Kofa, I thought it was a fork of GIMP becuase some people find the name offensive. Yet strangely enough there is a dance troup in New York called the GIMP project for dancers with disabilities.
I feel Rawtherapee has a more ‘typical’ GUI and is easy for people to pickup compared to DT, but the masks are so critical to my work practices that Rawtherapee was placed on the back burner for me. In my imaging universe I would love to see a program called Darktherapee which merged the greatness of both programs.