To embed Google Fonts please not the following advices.

• Go to https://fonts.google.com/ and choose the font-families you want to use in your store.
• The Html code that will be provided to you to embed the choosen fonts into your website looks like this:

  <link href="https://fonts.googleapis.com/css?family=Roboto:100,300,400,500,700|Ubuntu" rel="stylesheet">

• Copy the bold marked part of the link and enter it into one of the threee fields within the theme configurator that's intended for this purpose.
• Now you can use the fonts by entering the name of a font-family (e.g. Roboto) into one of the input fields which are provided to configure font-families (e.g. $font-family-sans-serif).