it simply imagesamples the whole image, averages all the pixels and returns a 15% grey that gets put into a log lin function in the grey point. I’m currently working on an auto exposure. In the meantime, ae’s color stabilizer in the past worked great for me.
also, I wrote a mouse program that moves farther the faster you twitch your wrist. It saves me from carpel tunnel.
https://technicolorsoftware.hostzi.com/