Dark mode <- desktop tabs are afaik broken. Cannot say for sure I am already on another build.

But there was or still is a nasty dark mode idle bug. I remember when you enabled DM, opened several tabs and clicked out of the browser your tab description became unreadable.

Workaround in this case is to change the flag

On some distros it also helps to use native theme provided by the OS.

• Workaround Windows
• Issue
• Old Brave Dark Theme extension, that also works on Linix