Required. A variable that represents an Application object.
The name of the theme you want to assign as the default theme plus any theme formatting options you want to apply. The format of this string is "themennn" where theme and nnn are defined as follows:
The name of the folder that contains the data for the requested theme. (The default location for theme data folders is C:\Program Files\Common Files\Microsoft Shared\Themes.) You must use the folder name for the theme rather than the display name that appears in the Theme dialog box (Theme command, Format menu).
A three-digit string that indicates which theme formatting options to activate (1 to activate, 0 to deactivate). The digits correspond to the Vivid Colors, Active Graphics, and Background Image check boxes in the Theme dialog box (Theme command, Format menu). If this string is omitted, the default value for nnn is "011" (Active Graphics and Background Image are activated).
The type of new document to which you are assigning a default theme.