title: Silverlight: TextBlock has no Template property?
body: <p>I want to customize the look of a <code>TextBlock</code>. (I want a rounded rectangle border around it.)
  But I'd like to be able to set its template via the file <code>app.xaml</code>.</p>
  
  <p>But I see that TextBlock doesn't have a <code>Template</code> property. I'd use Label (which does have a Template property) but I guess Silverlight doesn't support a Label control.</p>
  
  <p>So what can I use to do this?</p>