This .NET class wraps the AcGiImageBackgroundTraits ObjectARX class. 

It represents an image background to the underlying display system. An instance of this class is populated by ImageBackground through its SetAttributes method.

Autodesk.AutoCAD.GraphicsInterface.SubEntityTraits
    Autodesk.AutoCAD.GraphicsInterface.DrawableTraits
        Autodesk.AutoCAD.GraphicsInterface.NonEntityTraits
            Autodesk.AutoCAD.GraphicsInterface.ImageBackgroundTraits

Public abstract Class ImageBackgroundTraits
Inherits NonEntityTraits

public abstract class ImageBackgroundTraits : NonEntityTraits;