Tor browser's default theme uses os's color scheme. Just like firefox. If os is set to dark grey colors lets say, tor uses the same palette. If os is set to shades of black, tor uses the same palette of shades of black. If os white, pale yellow, whatever, tor browser uses the same colors.
So i am asking: Is this something new (like less than a year old) and tor browser used to not do it but now it does and it's fine? or not?(i didn't find anything that answers this question) Can this affect privacy,anonymity etc?
Could a script/program/something in a website see what colors are used and use this information for fingerprinting?
I mean, a script/program/something in a website can possibly see dark theme/light theme is enabled (like check the values default/dark/light) and therefore use this information for fingerprinting. That's why it is advised to not enable themes other than the default. But if in the default theme the tor browser is using the os's color scheme could a script/program/something in the website see some kind of information and use this for fingerprinting? (and I acknowledge that possibly a lot of things can be done, just, what are your thoughts on this?)