//set_size_request_to_display_given_text (pan_automation_state_button, X_("O"), 2, 2);
//set_size_request_to_display_given_text (pan_automation_style_button, X_("0"), 2, 2);
//set_size_request_to_display_given_text (pan_automation_state_button, X_("O"), 2, 2);
//set_size_request_to_display_given_text (pan_automation_style_button, X_("0"), 2, 2);