Is there a way to override the template that is located /site/plugins/feed/template.php ? And if so what do I need to adapt in the /site/templates/feed.php?
I sort of found a way. 
Is there a way to override the template that is located /site/plugins/feed/template.php ? And if so what do I need to adapt in the /site/templates/feed.php?
I sort of found a way.