No. When QuickBooks applies your design changes to any of your form templates, it makes a copy of the original and applies the changes to the copies.
If a template was the default template for a form, QuickBooks makes the copy, with the new design applied, the default.
Customize your form design overview
Step 1: Background & logo
Step 2: Colors & fonts
Step 3: Grid style
Step 4: Review design
Save your design online