Default:array() Return WP_Customize_Setting The instance of the setting that was added. Source public function add_setting( $id, $args = array() ) { if ( $id instanceof WP_Customize_Setting ) { $setting = $id; } else { $class = 'WP_Customize_Setting'; /** This filter is documented in wp-includes/class-wp-customize-manager.php */ $args = apply_filters( 'customize_dynamic_setting_args', $args, $id )