@alexfry @matthias.scharfenber Hey guys, would you care to share your updates? On my side, I have added some experiments to my DCTL version which I will upload soon. An interesting one is scaling the XYZ after conversion from JMh to XYZ by JMcompressed.x / JMh.x instead of setting JMh.x = JMcompressed.x before conversion to XYZ. It seems to preserve blues better and is definitely less objectionable than not compressing J which is what I did when using the “Old HL desat” hack (removed in my current version) or the achromatic shadow hack (also removed).