title: Is there an equivelent of the DesignMode property for Universal Apps?
body: <p>In Winforms you can say (with <a href="https://stackoverflow.com/questions/34664/designmode-with-controls">some slightly unexpected behaviour</a>)</p>
  
  <pre><code>if (DesignMode)
  {
      // Do something that only happens on Design mode
  }
  </code></pre>
  
  <p>In WPF, you've got</p>
  
  <pre><code>if (DesignerProperties.GetIsInDesignMode(this))
  {
      // Do something that only happens on Design mode
  }
  </code></pre>
  
  <p>But I'm struggling to find a similar option for the slimmed down PCL world that is Universal apps?</p>