Looking for a "Night Mode" solution for Firefox that keeps things dark while preserving unique old.reddit subreddit CSS

I've been enjoying the dark mode switch (might've gotten it from RES), but I'm starting to miss the unique CSS subreddits have. Dark Reader would be perfect if it didn't turn some comments bright white. Is there some other solution that has the best of both worlds?

- Night mode: false - RES Version: 5.24.8 - Browser: Firefox - Browser Version: 150 - Cookies Enabled: true - Reddit beta: false