public static function getAvailableThemes() {
		$path = \ROOT . \DS . 'views' . \DS . self::THEMES_FOLDER . \DS . '*';
		$dirs = \glob ( $path, GLOB_ONLYDIR | GLOB_NOSORT );
		$result = [ ];
		foreach ( $dirs as $dir ) {
			$result [] = basename ( $dir );
		}
		return $result;
	}