By using ComplexImages, you can build your own style in WebCallOut.
            
                This topic shows how to set ComplexImages from WebCallOut's Properties.
            
                To use ComplexImages in WebCallOut
            
                - Right-click on WebCallOut control and choose Properties.
 
                - Set TargetControlId to the control you want to use.
 
                - Set LayoutMode to ComplexImages.
 
                - Expand ImagesSettings and you can freely customize each property
                    using your own images.
                    
                    
                    
                    
                 
                - By default, ComplexImages will look like following:
                    
                    
 
                 
                - Set LayoutMode to Simple, and the WebCallOut will
                    look following:
                    
                    