title: How to add HTML elements into email templates in WooCommerce?
body: <p>I've seen many articles about <code>WooCommerce</code> email customization, but I can't find any that explains how to actually modify the page structure of the emails. For my project I need to add new page elements containing text and images. I want to actually build my emails as I would build a page.</p>
  
  <p>Echoing stuff in email templates doesn't seem to work though. If I take <code>templates/emails/customer-completed-order.php</code>, echo things in it then preview the result using <a href="https://wordpress.org/plugins/email-log/installation/" rel="nofollow">Email Log plugin</a>, it doesn't make any difference: my <code>echos</code> don't render.</p>
  
  <p>Are WooCommerce emails actually impossible to customize in depth?</p>