
On the latest version, even on compatibility mode, this issue seems to continually happen where the url is the same color as the background (black or white). Additionally, changing the theme to dark or light mode in the settings seemingly does nothing now. Finally, this is occurring at seemingly random times. 
I do not know how to replicate this, and it does not at all happen on Safari.
Ideally things would be readable and the settings would impact things.
Version 0.99.137-beta (WebKit 623.1.8.0.0)
Tahoe (26)