+extern Appearance *ob_a_focused_unpressed_shade;
+extern Appearance *ob_a_focused_pressed_shade;
+extern Appearance *ob_a_focused_pressed_set_shade;
+extern Appearance *ob_a_unfocused_unpressed_shade;
+extern Appearance *ob_a_unfocused_pressed_shade;
+extern Appearance *ob_a_unfocused_pressed_set_shade;