Selecting a New Theme - Shift4Shop
In the Shift4Shop Online Store Manager, you will see all of the various themes that are available for your store.
To install a theme, simply click on it to open up its respective preview screen. Once you're ready to install the theme, click on the "Install Theme" button. The Shift4Shop interface will download the theme and you'll be asked if you'd like to apply the template. Clicking OK to this screen will effectively update your site's live theme. Clicking Cancel will merely install the theme without applying it to the live site.
To view all available themes, visit https://themes.shift4shop.com