Pre-defined font in Noll theme not working

Hi folks,

I've just started setting up a page using this beautiful theme https://noll-demo.squarespace.com/

When I'm editing the site in Squarespace, I'm seeing a fallback font though. It should be using the one in the link above, but it seems to be showing just Times New Roman or similar.

Is there something I need to do, to start using the default theme font?

Cheers