Hello,
We are outphasing wxWidgets GTK2 build and we have been reported that
the tabs in pgadmin3 (which remains very popular) aren't themed properly
when wxGTK3 is used.
See below screenshot; unstable is the wxGTK3 build.
https://dev.solus-project.com/file/data/jzugkmqtn5ikapyg6p2o/PHID-FILE-3gp2fiwycdzejhjcy3pq/pg-c.png
Thank you!