Editing objects, layout parts, and the layout background > Saving and managing layout themes > Managing layout themes
 
Managing layout themes
1. Choose File menu > Manage > Themes.
You see a list of all the themes available in the file. Predefined themes (themes that come with FileMaker Pro) are enclosed in brackets ([ ]). The # of Layouts column shows the number of layouts that use each theme.
2. In the Manage Themes dialog box:
 
To
Do this
Rename a theme
Select a custom theme, click Rename, then type a new name.
Tip  By default, a custom theme has the same name as the predefined FileMaker Pro theme on which it is based. To avoid confusion, rename the custom theme.
Duplicate a theme
Select a theme, and click Duplicate.
Copy and paste a theme
Select a theme and press Ctrl+C (Windows) or Command-C (macOS), then press Ctrl+V (Windows) or Command-V (macOS).
Delete a theme
Select a theme, then click Delete.
3. Click OK to close the Manage Themes dialog box.
Related topics 
Saving a layout theme
Importing layout themes