* Using the night theme, which some folks strongly prefer to day theme.
* Zooming to 110%, which makes Zulip's font size similar to Slack and its clones.
With any luck, this summer we'll migrate our default font size to match other modern webapps, ideally with a "Dense mode" that preserves the current size for folks who want to fit more content on their screen.
I've thought about changing the default theme to the day theme, but it seems a little sad to remove our current defaut (of automatically detecting the browser configuration via `prefers-color-scheme`).