For now, I'm using sigma_g's CSS file. You can install his userscript here (requires a userscript manager like Greasemonkey or Tampermonkey). I prefer using his CSS file with Stylus. It has served me well for a long time now.

Would be nice if Codeforces could have native dark mode, so that I don't need to install anything extra.

If you care about eyes then use nightmode instead of darkmode

Download the add-on Dark Reader for Chrome/Firefox. I've been using it for over 6 months now and there's absolutely no issues/glitches due to it

Firefox has Dark Reader!

for me that what shown on the image looks shit.

I was worried about my eyesight getting affected because of siting over long periods in front of screeens so a few weeks back I searched about this topic......I found that black text on a light background is the most soothing to eyes.....at night one can have a tinge of red as used in windows 10 night light to reduce the glare.....

I used to use DarkReader but now, I don't use any extention other than night light of windows 10.

На сколько я знаю, у платформы есть другие более приоритетные задачи. Михаил говорил на одной встрече, что если вы готовы сами написать темный режим, то можно с ним связаться и более подробно это обговорить.

Good idea

in love with this dark mode :)