I'm currently trying to enhance/streamline the User Registration process on our Joomla website, however I've run into a snag on modifying the User Confirmation email. I have figured out how to change the text (extensions -> language(s) -> overrides) of the email, but not the html of the email. I'm trying to use some basic styling and more strategic placement of the links to make it more abundantly obvious what to do.
Is there any way to do this without installing an extension? My site is getting pretty bloated and I would prefer to not install an extension or plugin.