I know that I can change the id of the submit button by passing the argument 'id_form' => 'customID', but I want to also add a class. Is there a filter where I can do this or some other method that doesn't involve editing wp-includes/comment-template.php?
I know I can style everything the way I want using the id for the submit button, but I want to use a class. I have several helper classes like "rounded" and "shadow" and whatnot where adding a class to an item is much easier than typing out the same browser-specific CSS rules every time.
