Austin --
Here's a site to have a look at.
I've replaced the fonts used for the header and body of each day with two different Google web fonts.
You can see how I did it by opening this outline in Fargo, using Open By URL in the File menu.
The key feature is the <%customStylesScripts%> glossary entry.
This is included in every template, after all the other styles and scripts, in the head section of the template.
So you can override anything, in theory, by putting it in that glossary entry.
Let me know if this works for you.
Dave