Active tab in Brave is not highlighted. v0.63.55
Please edit your post and provide the requisite info.Like Brave version, OS, example sites, screenshot of the issue, etc.
This kind of info should be provided when you try to create a new thread. Providing more info will really help with support and troubleshooting.
Problem was because of combination of color and background selection. Problem disappeared when I turned off dark mode.
Issue resolved. (pilot error)