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Namespace: Autodesk.Revit.UI Class: ButtonData

ButtonData.LargeImage

Property
Description:
The large image of the button.
Remarks:
The image will be shown on the button in the Ribbon panel if the button is not a part of a stacked set. It will also be shown on a push button added to a pulldown button. The best size is 32 x 32 pixels; if larger, the image will be adjusted to fit the button.
Syntax
public ImageSource LargeImage { get; set; }