WP_Customize_Nav_Menus_Panel::check_capabilities() WordPress Method

	public function check_capabilities() {
		/*
		 * WP_Customize_Panel::$theme_supports only supports checking one
		 * theme_supports, so instead we override check_capabilities().
		 */
		if (
			! current_theme_supports( 'menus' ) &&
			! current_theme_supports( 'widgets' )
		) {
			return false;
		}

		return parent::check_capabilities();
	}