The File Upload Form uses the Roboto font for layout but you can easily use a different font family from the Google Fonts website.
To get started, go to fonts.google.com and choose one or more font families that you wish to use with your form.
link option and copy the
<link> tag and CSS Rule to the clipboard.
To change the default font of your form, open the sidebar inside Google Sheet and expand the
Advanced Settings section. Copy-paste the fonts code in custom CSS section.
The above CSS will switch the default font to
Montserrat while the question titles will be rendered in the cursive
Custom CSS falls outside the scope of our support. This means that we’re unable to help further with setup or troubleshooting.