title: How to set TextColor Xamarin.Forms TableSection?
body: <p>I am a fan of doing as much as possible in xaml, I have aTableView` with a TableSection. </p>
  
  <pre><code>&lt;TableView Intent="Menu"&gt;
       &lt;TableRoot&gt;
            &lt;TableSection Title="Test Section" TextColor="#FFFFFF"&gt;
                  &lt;TextCell Text="Test Item" TextColor="#FFFFFF"/&gt;
            &lt;/TableSection&gt;
       &lt;/TableRoot&gt;
  &lt;/TableView&gt;
  </code></pre>
  
  <p>For TextCell <code>TextColor="#FFFFFF"</code> seems to work, however whenever I use this attribute on a TableSection I get this:</p>
  
  <pre><code>An unhandled exception occurred.
  </code></pre>
  
  <p>Is it possible to change the color of the TableSection with xaml?</p>