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@@ -23,5 +23,8 @@ You even can add an preview image functionality. What if you want to show an pre
<img class="preview-img" href="<?=Application::getFileURL("images/preview/{$POST['ARGV']['PREVIEW_IMG']}")?>" alt="" />
<?php endif; ?>
+## Syntax
+Each argument key (the part before the `=`) must only contain letters from `A-Z`, `a-z`, `0-9` and underscores (`_`)!
+
## Conclusion
The use cases of the arguments are practically unlimited. Please note that the `standard` template does not use any arguments provided in the argument field. It is up to you whether you implement this in your own template to do something special or not! \ No newline at end of file