grommet site flashes white before switching to dark

[samuelgoff]

On a browser that is set to prefer dark mode, the Grommet site flashes white for about a second before turning dark. This is disconcerting to the user and makes the site "feel" slow, because it is waiting for the JS to load, parse, and read window.matchMedia('(prefers-color-scheme: dark)').matches (or auto) rather than simply using SSG CSS prefers-color-scheme media query.

grommet-flash.mov