Added highlight at 'Show all' button at inspector window

source/ubl-settings-usergroups.c

@@ -751,8 +751,10 @@ void yon_system_load(ubl_settings_usergroups_system_window *window){
 void on_mode_changed(GtkWidget *self, ubl_settings_usergroups_system_window *window){
 	if (window->show_all==0){
 		window->show_all=1;
+		gtk_style_context_add_class(gtk_widget_get_style_context(window->ToggleAllButton),"chosenOutline");
 	} else {
 		window->show_all=0;
+		gtk_style_context_remove_class(gtk_widget_get_style_context(window->ToggleAllButton),"chosenOutline");
 	}
 	yon_system_load(window);
 }