Option to mitigate LAB/LCh "blue turns purple" following RawTherapee LUT corrections
gimp#3580 (closed) brings up the problem that the LAB/LCH color space does deviate noticeably from actual perceptual uniformity. It would be nice to add to babl/GEGL/GIMP the user option to use LUT corrected LAB/LCh based on Munsell colors as RawTherapee provides:
https://discuss.pixls.us/t/color-choosing-paradox-also-warmer-vs-cooler/5722/25 https://discuss.pixls.us/t/uniform-lab-space/5998/3