Fun that you take a interest in the white balancing topic and color adaption topic @Thomas_Link!
Would you mind sharing some background on what your motivation is for the deep dive? Do you want learn to get better results, help out improving the methods of darktable or ART, or something else?
I can recommend reading some of the spektrafilm diskussions here spektrafilm tech discussions and also learn about vkdt input device transform for alternative methods. If you are interested in a further deep dive into what an “ideal” method should look like.
Finally, please disclose any use of AI/LLMs in your writing if you use one, your text unfortunately trigger my warning bells, I’m sorry if I’m misstaken.