1: I adhered to the naming scheme of `REPORTED_IMG`, `DELETED_IMG`, etc. because it looks better in the viewforum.php IMG vars assignment. If you want to change it, that's fine too.
2: None of the icons in viewforum rows have this. So you will just get the `<dt title="No unread posts">` if set. If we wanted to change this and add `title=` attributes to all icons, that would be a different topic.