RVTDocs.com
Namespace: Autodesk.Revit.UI Class: ButtonData

ButtonData.Image

Property
Description:
The image of the button.
Remarks:
The image will be shown on the button if it is a part of a stacked set, or if it is promoted to the Quick Access Toolbar. The best size is 16 x 16 pixels; if larger, the image will NOT be adjusted to fit the toolbar button.
Syntax
public ImageSource Image { get; set; }