To create a new Theme, head to the Themes panel and click on the + New Theme button in the top-left-hand corner of the page.
You will now have two options for creating your new Theme: clone an existing Theme or start with a blank Theme.
Cloning an existing Theme
This option is ideal if you would like to adopt a new Theme that only differs slightly from one that you are currently using. You will be able to select any of your existing Themes to copy and, once you do this, a new Theme will be created with exactly the same settings as the original one.
At this point, you will be able to enable certain features that were disabled on your original Theme, and vice-versa. For example, if you have the Embed button enabled on your original Theme, you can opt for the Custom button for the one you have just created.
Any SmartFrames that have been embedded with the original Theme will be unaffected by any of the changes you make.
Start with a Blank Theme
This option is ideal if you would like to build your own Theme with a number of customizations. Your new Theme will be created with all optional features deactivated.
Here’s an example of a SmartFrame that uses a Blank Theme: