Emprise comes with customizer option to control typography of every standard elements.
The theme uses Google Font Family “Noto Sans” and to change this to another Google Font, you need to get your own Google Font API key
Once you have the API key, go to Emprise Theme Option 
General Settings Google Font API Key
Now paste your API key in the field, and save. Once that’s saved, head over to Appearance Customize Typography Settings.
As shown in the screenshot above, you have control over entire typography used in the theme in one place, from display to extra small text is controlled through the typography settings. Including the font size, line height and font color.
For example, editing the Type D1 with your own font styles, click on Type D1 and the enter your preferred values as shown below:
This is exactly how you can control entire font styling of the theme and preview it live in customizer. Once you have made your changes and saved it, you will be able to see the changes reflected in your frontend of the site.