Operating System: macOS Ventura 13.5
Browsers: Safari 17, Chrome 115, Firefox 116

When viewing the documentation using the Ayu, Coal, and Navy dark mode themes, some of the labels in images that have text in a space with a transparent background are unreadable, and the contrast. Also, the widgets and header text color are not very readable with the Coal, Navy, and Ayu themes, plus the body font color for Coal is too low-contrast to be legible.

I have included screenshots for the three dark mode themes and screenshots for the Rust theme for contrast (pun intended).

Theme: Ayu

Theme: Coal

Theme: Navy

Theme: Rust