public function __construct() {
		parent::__construct(
			'media_gallery',
			__( 'Gallery' ),
			array(
				'description' => __( 'Displays an image gallery.' ),
				'mime_type'   => 'image',
			)
		);

		$this->l10n = array_merge(
			$this->l10n,
			array(
				'no_media_selected' => __( 'No images selected' ),
				'add_media'         => _x( 'Add Images', 'label for button in the gallery widget; should not be longer than ~13 characters long' ),
				'replace_media'     => '',
				'edit_media'        => _x( 'Edit Gallery', 'label for button in the gallery widget; should not be longer than ~13 characters long' ),
			)
		);
	}