GNOME Bugzilla – Bug 741569
Minor theme bug: square progress bars
Last modified: 2014-12-17 17:30:36 UTC
Created attachment 292763 [details] screenshot Inside a treeview, progress bars (like Transmission's) normally have round corners. But in selected rows, they have square corners. gtk 3.15.2-230-gc118e51
This is due gtk+ saner css inheritance behaviour for widgets with subelements, it's on my radar, thanks for reporting.
Fixed in master