protected function register_packs() {
		if ( empty( $this->packs ) ) {
			return;
		}

		$icon_picker = Icon_Picker::instance();
		require_once "{$icon_picker->dir}/includes/types/fontello.php";

		foreach ( $this->packs as $pack_data ) {
			$icon_picker->registry->add( new Icon_Picker_Type_Fontello( $pack_data ) );
		}
	}