Dropdown unreadable in dark mode on Debian-like system

I don't think this is a system issue because here is how it looks like in gnome-terminal:

For comparison, here are the light mode versions:

No files, tests, or entry points are mentioned. First reproduce the dropdown in dark mode on a Debian-like system and trace the CLI's dropdown rendering or theme handling. Done means the dropdown text is readable in dark mode while the light-mode appearance remains correct.

Written by the indexing model from the issue text.