Automattic / jetpack

				break;

			// Post by Email

			case 'post-by-email':

				$options = array(

					'post_by_email_address' => array(

						'description'       => esc_html__( 'Email Address', 'jetpack' ),

						'type'              => 'string',

						'default'           => '',

						'enum'              => array(

							'create'     => esc_html__( 'Create Post by Email address', 'jetpack' ),

							'regenerate' => esc_html__( 'Regenerate Post by Email address', 'jetpack' ),

							'delete'     => esc_html__( 'Delete Post by Email address', 'jetpack' ),

						),

						'validate_callback' => __CLASS__ . '::validate_list_item',

					),

				);

				break;

			// Protect

			case 'protect':

				break;

			// Site Icon

			case 'site-icon':

				$options = array(

					'site_icon_id' => array(

						'description'        => esc_html__( 'Site Icon ID', 'jetpack' ),

						'type'               => 'integer',

						'default'            => 0,

						'validate_callback'  => __CLASS__ . '::validate_posint',

					),

					'site_icon_url' => array(

						'description'        => esc_html__( 'Site Icon URL', 'jetpack' ),

						'type'               => 'string',

						'default'            => '',

						'sanitize_callback'  => 'esc_url',

					),

				);

				break;

			// Subscriptions

			case 'subscriptions':