title: What VisualState Name should I use for styling the ToggleSplitButton in WinUI 3.0 for when the control is disabled?
body: <p>I've copied the style for the SplitButton, but it lacks any VisualState's named &quot;Disabled&quot; or &quot;CheckedDisabled&quot;.  I've added these manually but the don't seem to have any effect in my app.  When I try added a VisualState named &quot;PrimaryDisabled&quot; I get an exception (Microsoft.UI.Xaml.Markup.XamlParseException) -- which I don't get with the Disabled/CheckedDisabled visual states.  Below is an example of the VisualState I have implemented for &quot;Disabled&quot;</p>
  <pre><code>                            &lt;VisualState x:Name=&quot;Disabled&quot;&gt;
                                  &lt;VisualState.Setters&gt;
                                      &lt;Setter Target=&quot;PrimaryBackgroundGrid.BorderThickness&quot; Value=&quot;0&quot;/&gt;
                                      &lt;Setter Target=&quot;SecondaryBackgroundGrid.BorderThickness&quot; Value=&quot;0&quot;/&gt;
                                      &lt;Setter Target=&quot;PrimaryBackgroundGrid.Background&quot; Value=&quot;{StaticResource ResourceKey=AdbsButtonDisabledColor}&quot; /&gt;
                                      &lt;Setter Target=&quot;SecondaryBackgroundGrid.Background&quot; Value=&quot;{StaticResource ResourceKey=AdbsButtonDisabledColor}&quot; /&gt;
  
                                  &lt;/VisualState.Setters&gt;
                              &lt;/VisualState&gt;
  </code></pre>
  <p>The same VisualState works as expected with my custom Style for the ToggleButton. Both have the same binding for their respective IsEnabled properties.  Both get disabled at the same time (neither are clickable) only the ToggleSplitButton is not displaying the same color despite have the same VisualState properties in its style.</p>
  <p>WinUI 3.0 (Microsoft.WindowsAppSDK.1.1.3)</p>
  <p>I would appreciate any suggestions/solutions anybody has to this problem.</p>