I added a dark-theme toggle to this blog about a month ago. Later, I saw Lea Verou’s post, The best dark mode toggle is probably none: However, my biggest insight from all of this is that while I stand by my original recommendation that in most cases, if you are going to have a dark mode toggle that is visible at all times, it should only have two states (system and opposite), I now think that for the vast majority of websites, you should not have such a toggle at all. Lea’s post made me realize that, since adding it, my toggle has served mostly to annoy me. I’m so used to the “system” appearance mode — when a UI just adopts the OS’s light/dark setting — that I get a whiff of bemusement when some app or site doesn’t work that way (including my own). So, when I saw Lea’s post, I decided immediately to remove my toggle. I was grateful for the push.