General
The General tab page lists the general properties of the current theme.
Files
Adds new files to the selected theme.
Insert
Opens a submenu in the Gallery where you can choose between Copy and Link. The selected Gallery object is either copied into the current document or a link is created.
If you have selected an object in your document, then a new insertion will replace the selected object.
Preview
The element selected is displayed in the Gallery at maximum size. Double-click the preview to switch back to the normal Gallery view.