Codeforces Theme Changer
So I have made this https://github.com/MostlyKIGuess/CF-Theme theme changer for cfs, which gives you to choose a theme from a lot of options , for people using firefox there's an extension available as well here https://addons.mozilla.org/en-US/firefox/addon/codeforces-theme-changer/ .
It was a fun project and I will keep fixing bugs and adding more theme, feel free to create issues at github, will try to adhere to it as soon as possible>
Looking forward for people to use this :)
Thank You!