GTK Style, No keyboard focus indicator for check boxes on GTK+ theme Nodoka

Using a Qt application on Fedora Linux, the check boxes in application dialogs do not properly indicate that they have the keyboard focus.

This appears to be specific to the Nodoka style/theme (the default on Fedora) for controls. That is, when a check box has the keyboard focus under the Nodoka theme, I think it is supposed to highlight the check box itself (and not have the usual focus rectangle). System dialogs behave this way, anyway, but Qt applications (including the Qt Designer) do not present any indication that the check box has focus.

This is a bug in the GTK+ style