I use a transparent background. When viewing embedded games, and clicking the menu, the text is unreadable.

Example:
(https://lichess.org/forum/game-analysis/devastating-mouse-slip-but-opponent-doesnt-take-a-free-rook)

To reproduce:

1. Set background to transparent
2. Click on the link
3. Click on the menu in the centre of the board

The bug seems to apply to all PGN embedded games
Instead the site should have a background around the text, similar to in dark or light mode.

Windows 11, Microsoft Edge