Specifies the size of an Application Bar.
Assembly: Microsoft.Phone (in Microsoft.Phone.dll)
specifies the size of the Application Bar when it first appears on a page. It also specifies the size that the Application Bar returns to after the user expands it and collapses it using the ellipsis.
Use the mini size on pages where you want to maximize screen space, such as on panorama pages.
On pages that support landscape orientation, when in landscape orientation, the Application Bar appears with the default size regardless of the Mode value, to improve usability.