Saving a Custom Theme
Create a new theme that contains any master slide changes you’ve made to the
To save the current theme as a custom theme:
Choose File > Save Theme.
Type a name for your theme.
If you added sound or movies that you want to include in the theme, select “Copy
audio and movies into theme.”
If you don’t see this checkbox, click the disclosure triangle to the right of the
Save As field.
Saving media files with a document makes the file much larger.
Unless you specify another location, custom themes are saved in the Themes folder
on your hard disk ([home]/Library/Application Support/iWork/Keynote/Themes). Only
themes in this folder appear in the Theme Chooser. If you store your theme in another
location, you can still open it (from the Finder) and use it to create a slideshow.