This, and a further example: early on in my career I attended a presentation by a very thoughtful colonel who said something along the lines of “I want something that can be used in the dark by a young soldier with minimal education, who is cold, tired, and hungry, while he’s sheltering in a trench in the rain. He’s also frightened because a lot of people just over there are trying to kill him. This (waving a modern scientific calculator) is useless”. A bit over the top for this forum, perhaps, but it illustrates the point. My expertise (and degree) was in life sciences but that shouldn’t disqualify me from being to use something like the color calibration module…but I just can’t get my head around the sliders (DT ver 3.4). I don’t think I’m alone, Bruce Williams seemed to have some difficulty as well, and posts here seem to agree. Not all outstanding photographers (you can exclude me from that category) and artists have an understanding of advanced mathematics. So I’m really sorry to say that the color calibration module (as in 3.4) was not up to the usual excellent, high, easily understood standards in the rest of darktable. I’m looking forward to an update with a modified color calibration module that’s a bit more intuitive to aged grunt amateur photogs like me.
Please don’t shoot me, this is a clumsy attempt to give constructive criticism. DT as a whole is an outstanding package, arguably more so because it’s open source, and huge thanks and congratulations to all those who put in hours of work to make it so,