Created attachment 105747 [details] Creates a treeview that exhibits the glitchy behavior When using a treeview with separators (via set_row_separator_func), the breeze theme does not render the treeview correctly, and it glitches the rows as you move your mouse over it. A simple python script to show a treeview that exhibits the bug is attached. Behavior is exhibited on Fedora 25, Gtk 3.22; also reported on Debian sid. Originally reported to the Exaile project at https://github.com/exaile/exaile/issues/362
This is due to a typo in the css. seperator -> separator.
Fixed by Olli Helin with https://commits.kde.org/breeze-gtk/a742b49636d958ab310a71fec4454e7fb00da584