title: Prevent blurriness when dpi changes
body: <p>When a user changes the system dpi (in Settings -&gt; Display) a WPF Window becomes blurry. Closing the application and restarting it makes it clear again.</p>
  <p>How can I get the Window clear again <strong>without</strong> closing it?</p>
  <p>Recreate by creating a WPF app, adding a button and running it. Then change the dpi as mentioned above. Even changing it back again doesn't help.</p>