*/
public static function getTemplateEngine()
{
- $template_engine = defaults(self::$theme, 'template_engine', 'smarty3');
+ $template_engine = (self::$theme['template_engine'] ?? '') ?: 'smarty3';
if (isset(self::$template_engines[$template_engine])) {
if (isset(self::$template_engine_instance[$template_engine])) {