Shapes Silverlight

    xmlns='http://schemas.microsoft.com/winfx/2006/xaml/presentation' 
    xmlns:x='http://schemas.microsoft.com/winfx/2006/xaml'
    xmlns:d='http://schemas.microsoft.com/expression/blend/2008' 
    xmlns:mc='http://schemas.openxmlformats.org/markup-compatibility/2006' 
    mc:Ignorable='d' 
    d:DesignWidth='640' 
    d:DesignHeight='480'>
    
    
                    Canvas.Left="50" Canvas.Top="50"
             Stroke="Black" StrokeThickness="4">
         
                                             SpreadMethod="Reflect"
                                 RadiusX="0.1" RadiusY="0.1">