Post

Josh Collinsworth
@collinsworth.dev

I wasn't sold on this until I got to the implementation. It's so smart I'm probably gonna spend my day redesigning at least one or two of the theme toggles I've built.

Lea Verou, PhD@lea.verou.me

🔥 New blog post: Dark mode toggles that expose three states (system, light, dark) seem like the best option. Until you think about user goals, that is. Before rushing to disagree, hear me out. lea.verou.me/blog/2026/da... PS: As a data point, @jakearchibald.com was converted after reading this 😅

lea.verou.meDark mode toggles: two states are enough • Lea VerouYes, the underlying model must have three states, but one is always irrelevant to the actual user goal. Users do not seek out solutions to problems they don’t currently have. A lot of the hate towards...

2 reposts7 likes

Tom Hicks
@hicksyfern.bsky.social

Incorrectly modelling “user has not expressed a preference” happens a ton! The magic here is to basically model it as the user *removing* a preference when they match their system theme, which turns out to be a perfectly valid thing for the button to do.