theme.php
<!DOCTYPE html>
<html>
<head>
<?=$this->getHeadHtml()?>
</head>
<body>
<!-- TEST THEME -->
<?=$content?>
</body>
</html>
<!DOCTYPE html>
<html>
<head>
<?=$this->getHeadHtml()?>
</head>
<body>
<!-- TEST THEME -->
<?=$content?>
</body>
</html>