How do I set the default font size for new SnapGene files?
Open Preferences
Click menu SnapGene → Preferences (macOS) or Edit → Preferences (Windows or Linux). Select "General" in the sidebar.
Select "General" in the sidebar and use the "Default Font Size for New Files" drop-down to set the default font size.
To change the font size in an existing file, open the file then click View → Font Size.