Stolen Taking inspiration from this codeberg repo.
Click on the link above and read there. If you wanna change colors then maybe like scroll around for a while until you find the colors and change them. OR you can do like
find . -name '*.css' -type f -exec sed -i s/#hex1/#hex2/g {} +Where hex1 is the hex of the color you want to replace and hex2 is the hex of the color you want it to be replaced by. This will probably not be enough. Maybe need to change some RGB values too, or opacity and stuff. but yeah.
See this for codeberg or this for github.
It is kinda make-do though. (just like this rice)