[Windows] Fixed the color not being applied to the Expand/Collapse Ch…

…evron icon (#29140)

* Fixed Chevron icon color issue

* Test sample changes

* Test script changes

* test sample changes

* Added Windows snapshot

src/Controls/tests/TestCases.HostApp/Issues/Issue25115.cs

@@ -0,0 +1,37 @@
+namespace Maui.Controls.Sample.Issues;
+
+[Issue(IssueTracker.Github, 25115, "[Windows] The color was not applied properly to the Tab Chevron icon", PlatformAffected.UWP)]
+public class Issue25115 : TestShell
+{
+	protected override void Init()
+	{
+		SetValue(Shell.TabBarUnselectedColorProperty, Colors.Blue);
+		SetValue(Shell.TabBarTitleColorProperty, Colors.Red);
+
+		var tabBar = new TabBar();
+		var tab1 = new Tab();
+		var tab2 = new Tab();
+		tab1.Title = "Tab 1";
+		tab2.Title = "Tab 2";
+
+		tab1.Items.Add(GetShellContent("Page 1", "Page 1 Content"));
+		tab1.Items.Add(GetShellContent("Page 2", "Page 2 Content"));
+		tab2.Items.Add(GetShellContent("Tab 2", "Tab 2 Content"));
+
+		tabBar.Items.Add(tab1);
+		tabBar.Items.Add(tab2);
+		Items.Add(tabBar);
+	}
+	ShellContent GetShellContent(string title, string content)
+	{
+		return new ShellContent
+		{
+			Title = title,
+			Content = new ContentPage
+			{
+				Title = title,
+				Content = new Label { Text = content, AutomationId = "label" },
+			}
+		};
+	}
+}

src/Controls/tests/TestCases.Shared.Tests/Tests/Issues/Issue25115.cs

@@ -0,0 +1,25 @@
+#if WINDOWS // Chevron icon color is only applicable to Windows
+using NUnit.Framework;
+using UITest.Appium;
+using UITest.Core;
+
+namespace Microsoft.Maui.TestCases.Tests.Issues;
+
+public class Issue25115 : _IssuesUITest
+{
+	public override string Issue => "[Windows] The color was not applied properly to the Tab Chevron icon";
+
+	public Issue25115(TestDevice device)
+	: base(device)
+	{ }
+
+	[Test]
+	[Category(UITestCategories.Shell)]
+	public void VerifyTabChevronIconColor()
+	{
+		App.WaitForElement("label");
+
+		VerifyScreenshot();
+	}
+}
+#endif

src/Core/src/Platform/Windows/NavigationViewExtensions.cs

@@ -37,13 +37,22 @@ public static void UpdateTopNavigationViewItemTextColor(this MauiNavigationView
 					navigationView.TopNavArea.Resources.Remove("TopNavigationViewItemForegroundPointerOver");
 					navigationView.TopNavArea.Resources.Remove("TopNavigationViewItemForegroundPressed");
 					navigationView.TopNavArea.Resources.Remove("TopNavigationViewItemForegroundDisabled");
+
+					navigationView.TopNavArea.Resources.Remove("NavigationViewItemForeground");
+					navigationView.TopNavArea.Resources.Remove("NavigationViewItemForegroundPointerOver");
+					navigationView.TopNavArea.Resources.Remove("NavigationViewItemForegroundPressed");
 				}
 				else
 				{
 					navigationView.TopNavArea.Resources["TopNavigationViewItemForeground"] = brush;
 					navigationView.TopNavArea.Resources["TopNavigationViewItemForegroundPointerOver"] = brush;
 					navigationView.TopNavArea.Resources["TopNavigationViewItemForegroundPressed"] = brush;
 					navigationView.TopNavArea.Resources["TopNavigationViewItemForegroundDisabled"] = brush;
+
+					//The NavigationViewItemForeground color is applied to the Expand/Collapse Chevron icon
+					navigationView.TopNavArea.Resources["NavigationViewItemForeground"] = brush;
+					navigationView.TopNavArea.Resources["NavigationViewItemForegroundPointerOver"] = brush;
+					navigationView.TopNavArea.Resources["NavigationViewItemForegroundPressed"] = brush;
 				}
 
 				navigationView.TopNavArea.RefreshThemeResources();