We have included Extinct child theme with the package and in extinct-child\style.css we have set the font-face to Weston. Pls have a look at the file to see how it works.
If you enable the child theme, the font should get enabled automatically although you still expected to download the fonts and upload it to your server as explained in the below post –
https://www.livemeshthemes.com/support/faqs/install-custom-fonts/