Document.DefaultTextStyle Property (Visio)
Gets or sets the default text style of a document. Read/write.
The DefaultTextStyle property corresponds to the value shown in the Style box on the Font tab of the Text dialog box (click the Font arrow on the Home tab) when nothing is selected on the drawing page. The document's default text style is applied to new shapes created with the Microsoft Visio drawing tools or with the Draw methods by Automation.