title: Hover effect in style doesn't work (ToolBarPanel) - WPF c#
body: <p>I have a toolbarpanel which I've made a custom style.</p>
  
  <pre><code>&lt;Window.Resources&gt;
      &lt;Style x:Key="toolbar_opciones" TargetType="{x:Type ToolBarPanel}"&gt;
          &lt;Setter Property="Background" Value="DeepSkyBlue"/&gt; &lt;!-- does not work --&gt;
          &lt;Setter Property="Cursor" Value="Hand"/&gt;
          &lt;Style.Triggers&gt;
              &lt;Trigger Property="IsMouseOver"  Value="True"&gt;
                  &lt;Setter Property="Background" Value="CadetBlue"/&gt;
              &lt;/Trigger&gt; &lt;!-- does not work --&gt;
          &lt;/Style.Triggers&gt;
      &lt;/Style&gt;
  &lt;/Window.Resources&gt;
  &lt;ToolBarPanel Style="{StaticResource toolbar_opciones}"/&gt;
  </code></pre>
  
  <p>The cursor works but the background property no, why?</p>