Steps
Go to Dashboard → Report Setup (Global Settings)
Select the report you want to customize
Click on any text element in the report preview
On the left panel, adjust: Font Family, Font Size, Bold toggle, Color
Click Save
What You Can Customize
Headers
Labels
Spec descriptions
Any text field on the report
Important Notes
The default Full Page Spec layout is locked, but you can customize text styling
To change the actual layout, create a custom report from scratch
Changes apply to all reports of that type going forward
Related Features
Creating a Custom Cover Page
Using Report Presets
Create a Report for Individual Specs