It's only a problem if I have my browser set to use dark theme or system theme and my system theme is dark if I switch it to light theme. Everything looks good. So most likely he's using some kind of CSS framework that's automatically responding to the dark theme, but other styles that he's hand coded are not compatible with it

Thank you all for heads up! I was playing with CSS and didn't test the dark mode. I think it's fixed now.

I checked in Firefox and Chrome (on Linux) and code samples look OK to me. What browser/OS are you using. Maybe send me a screenshot at janko dot itm at gmail.

Same here. I guess it's an issue with (system) dark theme (you can simulate that in dev tools. Android here, so must be Chrome.

I fixed it thanks! I was able to activate dark more in Firefox on desktop and find problems with CSS.

This is on FF for me. Specifically Zen, which is FF based.

You still have this problem? I tested and fixed css yesterday. What exactly is problematic?

I hadn't checked since I posted this, but today the entire document appears properly unredacted! Nice work.