Basic UI: Selection doesn't respect Dark theme

OpenHAB 3.4.4, using “Dark” theme for Basic UI…

Any “Selection” sitemap item (that pops up a list of radio buttons) doesn’t respect the dark theme:

Is this a known issue, or something wrong in my configuration? (I am doing some CSS overrides, but I’m pretty sure this problem existed before I started doing that.)

You’re correct. An issue could be declared.