[19:41] <arty-name> Hello! What would be the best place to report an issue with a standard Ubuntu theme?
[19:42] <arty-name> I mean Radiance. It is provided in the package light-themes, and Ubuntu Artwork team is marked as the maintainer of this package.
[19:42] <arty-name> This theme has a bug in Gtk 3.20, used in Ubuntu 16.10