Problem
The current properties window uses buttons to change screens, essentially acting like tabs, but there's no visual cue to identify this connection to the user at a glance.
Proposed Solution
Align the bottom of screen buttons with the bottom of the header to create a visual connection between them.
Additionally, this could be further improved by adding adapting the header's bottom highlight to be an underline, making use of the same theme color (Radio Buttons: inner selected)


