1. Login as administrator using the new UI16.
1. Change the system property "css.base.font-family" to "Arial".

2. Refresh the instance homepage to reload the navigator. Observe the font used stays as Source Sans Pro.

 

After carefully considering the severity and frequency of the issue, and the cost and risk of attempting a fix, it has been decided to not address this issue in any current or near future releases. We do not make these decisions lightly, and we apologize for any inconvenience. You can submit an Enhancement Request and Subscribe to this article to be notified in case of future updates.