In Zoey Web > Theme click the "Change / Add Themes" button
Then click "Add New Theme"
When browsing themes you can choose to preview a theme.
From the Preview screen, you can choose to Install Theme. This will allow you to give your theme a name and add it to your store allowing you to edit it before publishing.
You can rename a theme by clicking on the gear icon and choosing "Change Theme Label"
You can make a copy of a theme by clicking on "Duplicate Theme" from the same menu as "Rename Theme" (see above). The duplicate will remain unpublished until you manually publish it.
You can only delete a theme that is not currently published.
Learn More About Themes
Updated about 1 year ago