The settings page does not really fit the Brave browser theme but looks like Chrome. A suggestion to make it feel more like Brave is to change the blue navbar to orange, the on/off switches to orange instead of blue, etc.
The settings page is getting a overhaul. Here’s the issue that gives you a sneak peak and an idea of what its going to look like once implemented
We’ve had some additional discussions surrounding the UI with users who feel the same way as you. Check these posts for additional information: