When I feel like darkmode, I use this bookmarklet: javascript:(function(){s=document.createElement('style');s.textContent='*{color: #5e5 !important; backgr

When I feel like darkmode, I use this bookmarklet: javascript:(function(){s=document.createElement('style');s.textContent='*{color: #5e5 !important; background: #000 !important;}';document.head.appendChild(s)})() It also works on mobile and is easy to edit. So for example if you also want a certain fontsize, just add "font-size: 25px !important;" etc.