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.
Thank you ! This will be very helpful.
I am preparing small update with some bug fixes reported by you and others. I will probably release it today.
