theme.php
<!DOCTYPE html>
<html>
<head>
<?='';//\Lia\Addon\View::from($lia)->view('lia/Resources');?>
<?=\Lia\Addon\Resources::from($lia)->getHtml();?>
</head>
<body>
<header>
<h1>Header</h1>
</header>
<main>
<?php if (\Lia\Addon\Error::exists($lia))echo \Lia\Addon\Error::from($lia)->headerMessage; else echo "OHNO"?>
<?=''//\Lia\Addon\View::from($lia)->view('lia/Content'); ?>
<?=$content?>
</main>
<footer>
<h3>Footer</h3>
</footer>
</body>
</html>