TGPX Question: How The Hell To I Automatically Insert The Category's Name Into The HTML??

[Greenguy]

I assumed this would work:
{$category.name|htmlspecialchars}

But obviously I'm dumb. I have the feeling I'm missing something like maybe coding that needs to be added to the top of the page so that it works, but fuck me if I can find it

Can anyone tell me WTF I'm doing wrong? Or show me an example of it in action?

Thank you