The script is available for download from https://gallery.technet.microsoft.com//How-to-change-Default-8afc1646. You can also use Microsoft Script Browser for Windows PowerShell ISE to download the sample with one button click from within your scripting environment.
This script will set OWA Default Font Settings for distribution groups.
This script is to help Exchange Admins to quickly set OWA Default Font Settings via PowerShell.
You can find more All-In-One Script Framework script samples at https://aka.ms/onescriptingallery