Show HN: Adaptive CSS Theme for Hacker News

I was slightly frustrated that all of the themes for Hacker News went far above and beyond simply adding a dark theme, many of them completely change the UI of the site.

I've attempted to create a theme which I think only minimally changes the design (to aid readibility in dark mode) and only activates dark mode when your OS instructs the browser via the `prefers-color-scheme: dark` media-query.

Would appreciate any feedback/suggestions :)