* Use CSS custom properties * Use `@media (prefers-color-scheme: dark)` media queries * Add a toggle on the page as well * Save the preference in localStorage * Update all open tabs (see [this post](https://jeremenichelli.io/2021/04/dark-mode-local-storage/)) * Make sure exporting to png still works (somehow)
@media (prefers-color-scheme: dark)media queries