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sj26/fastmail-auto-dark.user.js

Created January 28, 2020 12:22
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Fastmail Auto Dark Mode
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fastmail-auto-dark.user.js
// I don't know how to inject this on load yet, but pasting this in a console makes the Fastmail theme change between light and dark when macOS is toggled between light and dark.
window.matchMedia("(prefers-color-scheme: dark)").addListener(function(query) {
var theme = query.matches ? "dark" : "minimal";
FastMail.theme.set("theme", theme);
FastMail.userPrefs.set("theme", theme);
});
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