Thank you again!
Feedback from people who know the topic and use the program is the best.
I will try to address issues you have mentioned in the next update.
It looks like shaders are used for color conversion so here's a shader I wrote a while back for sRGB -> Jzazbz -> sRGB https://pastebin.com/DMBNjc6g Might save some time to take the guts of this rather than rewrite from the article.