then forget every setting attempted on monitor and gpu, windows in general, this a setting on chrome directly
apart from wiping the settings you can uninstall chrome completelly
especially the config folder of it
uninstall chrome, if you need to do backups of your bookmarks and passwords you could synchronize or just wipe everything
when asked, tell chrome to delete everything
after that go to the settings folder
C:\Users\replacethiswiththenameofyouruser\AppData\Local\Google\Chrome
delete that chrome folder or move it to another place, it stores some settings from chrome for your user, including the bookmarks but iirc is encripted so not easy to take it out
also delete or move to other place this folder
C:\Program Files\Google\Chrome
only the chrome part, not the entire route
😀
after that, reinstall chrome
i like more the offline installer but you can run both
this is the offline installer link, 50 megabytes and then installs very quickly
https
/support.google.com/chrome/answer/126299?hl=en
this is the online version
https
/www.google.com/chrome/browser/desktop/index.html
if that doesn't help, well, no idea what register should be deleted, perhaps a app or a program are changing or customizing colors on chrome on your pc