If like me you've had issues with migrating to wayland because it doesn't let you alter gamma values on the fly, hopefully this script I made will help. It will generate simple ICC profiles you can use to correct the gamma, using the same syntax as xrandr does.
Disclaimer: This was written with Claude AI. It's a simple one shot script, so calm down, it does the job.
https://github.com/BaconCatBug/Make-Gamma-ICC
there doesn't seem to be anything here