def refresh_title(self, sender=None, data=None):
        """
        Callback for the signal that notifies backends name changes. It changes
        the title of this view

        @param sender: not used, here only for signal callback compatibility
        @param data: not used, here only for signal callback compatibility
        """
        markup = "<big><big><big><b>%s</b></big></big></big>" % \
            self.backend.get_human_name()
        self.human_name_label.set_markup(markup)