I'm really doing it! I've been test-driving it for a few days now and it feels really comfortable. It's a rewrite of Alabaster, a theme from a guy whose article inspired me to try out a high-viz color for comments (https://tonsky.me/blog/syntax-highlighting/).
I've tweaked his theme's colors and made a few additions (like subdued Python type hints) and fixes for JSON. Might write up a blog about it and provide a download...
But as with every theme this is probably a personal #xkcd927 situation 🤷♂️