// Register Default Headers function custom_default_headers() { $headers = array( 'Sản phẩm' => array( 'description' => __( 'giường gấp', 'text_domain' ), 'url' => '', 'thumbnail_url' => '', ), ); register_default_headers( $headers ); } add_action( 'after_setup_theme', 'custom_default_headers' );