fix: remove icon brush from renderer

Author: rajamatt

samples/Uno.Toolkit.Samples/Uno.Toolkit.Samples.Shared/Content/NestedSamples/FluentNavigationBarSampleNestedPage1.xaml

@@ -17,6 +17,7 @@
 		</Grid.RowDefinitions>
 		<utu:NavigationBar Content="First Page"
 						   MainCommandMode="Action"
+						   AutomationProperties.AutomationId="FluentPage1NavBar"
 						   Style="{StaticResource DefaultNavigationBar}">
 			<utu:NavigationBar.MainCommand>
 				<AppBarButton Click="NavigateBack"
@@ -42,6 +43,11 @@
 						<BitmapIcon UriSource="ms-appx:///Assets/AppleIcon_Small.png" />
 					</AppBarButton.Icon>
 				</AppBarButton>
+				<AppBarButton Click="NavigateToNextPage"
+							  Label="Page2"
+							  AutomationProperties.AutomationId="FluentPage1NavBarPrimaryCommand3"
+							  Style="{StaticResource DefaultAppBarButtonStyle}"
+							  Icon="Favorite" />
 			</utu:NavigationBar.PrimaryCommands>
 			<utu:NavigationBar.SecondaryCommands>
 				<AppBarButton Command="{Binding Secondary1CountCommand}"

samples/Uno.Toolkit.Samples/Uno.Toolkit.Samples.Shared/Content/NestedSamples/FluentNavigationBarSampleNestedPage2.xaml

@@ -14,6 +14,7 @@
 			<RowDefinition Height="*" />
 		</Grid.RowDefinitions>
 		<utu:NavigationBar Content="Second Page"
+						   AutomationProperties.AutomationId="FluentPage2NavBar"
 						   Style="{StaticResource DefaultNavigationBar}">
 			<utu:NavigationBar.PrimaryCommands>
 				<AppBarButton Label="More"

src/Uno.Toolkit.UI/Controls/NavigationBar/AppBarButtonRenderer.Android.cs

@@ -96,8 +96,6 @@ protected override IEnumerable<IDisposable> Initialize()
 					new[] { AppBarButton.LabelProperty },
 					new[] { AppBarButton.IconProperty },
 					new[] { AppBarButton.IconProperty, BitmapIcon.UriSourceProperty },
-					new[] { AppBarButton.IconProperty, IconElement.ForegroundProperty },
-					new[] { AppBarButton.IconProperty, IconElement.ForegroundProperty, SolidColorBrush.ColorProperty },
 					new[] { AppBarButton.ContentProperty },
 					new[] { AppBarButton.ContentProperty, FrameworkElement.VisibilityProperty },
 					new[] { AppBarButton.OpacityProperty },

src/Uno.Toolkit.UITest/Controls/NavigationBar/Given_NavigationBar.cs

@@ -107,5 +107,19 @@ public void NavBar_Page_Can_Go_Back()
 
 			App.WaitForNoElement("M3Page2NavBar", "Timed out waiting for no Page 2 Nav Bar");
 		}
+
+		[Test]
+		[AutoRetry]
+		public void NavBar_AppBarButton_With_Icon_Click()
+		{
+			NavigateToNestedSample("FluentNavigationBarSampleNestedPage");
+
+			PlatformHelpers.On(
+				iOS: () => App.Tap("FluentPage1NavBarPrimaryCommand3"),
+				Android: () => App.Tap("FluentPage1NavBarPrimaryCommand3")
+			);
+
+			App.WaitForElement("FluentPage2NavBar", "Timed out waiting for Page 2 Nav Bar");
+		}
 	}
 }