title: WPF 2d vector-graphics library
body: <p>I'm looking for a WPF library for 2d vector graphics.</p>
  
  <p>Required features</p>
  
  <p>API for:</p>
  
  <ul>
  <li>drawing shapes</li>
  <li>editing shapes</li>
  <li>highlighting shapes</li>
  </ul>
  
  <p>Optional features:</p>
  
  <ul>
  <li>possibility to save image to a binary file and to load image from such file (format doesn't matter)</li>
  <li>own editor which has UI for creating and editing shapes and which can be integrated in an application (WPF control or external application)</li>
  </ul>
  
  <p>Both free and commercial libraries are acceptable.</p>
  
  <p>P.S. In the last resort WinFroms libraries are acceptable.</p>