title: How to blur drawing using the DrawingContext (WPF)?
body: <p>MSDN says, that one may apply blur bitmap effect do stuff drawn by the <code>DrawingContext</code> using the <code>PushEffect</code> method. But, both <code>PushEffect</code> and <code>*BitmapEffect</code>s are marked as obsolete.</p>
  
  <p>How may I apply blur to what is drawn by the DrawingContext?</p>