OK, I understand your explanation. Just one point: does it only apply
to plugins that refer to color spaces (which by definition are limited
(0, 1))? Or does it apply to all, e.g., Histogram and the like?
Another question: generally conversions between color spaces are
referred to CMS, i.e. via ICC color profiles; OpenColorIO; ACES, etc.
Since CinGG does not have CMS how does the Color Space plugin work?
And how does the “YUV Color Space” tool in “Preferencies” work?
Video typically stored in YUV colorspace, so for anything internally working in RGB and back to yuv for most video codecs SOME colorspace transform is applied, even if there no ICC/OCIO in pipeline, from my understanding.