diff --git a/src/SamplesApp/SamplesApp.UnitTests.Shared/Controls/UITests/Presentation/SampleChooserViewMode.Properties.cs b/src/SamplesApp/SamplesApp.UnitTests.Shared/Controls/UITests/Presentation/SampleChooserViewMode.Properties.cs
index f7dc81439419..9f9e23e8f836 100644
--- a/src/SamplesApp/SamplesApp.UnitTests.Shared/Controls/UITests/Presentation/SampleChooserViewMode.Properties.cs
+++ b/src/SamplesApp/SamplesApp.UnitTests.Shared/Controls/UITests/Presentation/SampleChooserViewMode.Properties.cs
@@ -53,6 +53,7 @@ public partial class SampleChooserViewModel : System.ComponentModel.INotifyPrope
 		private bool _isAnyContentVisible = false;
 		private bool _contentAttachedToWindow;
 		private bool _useFluentStyles;
+		private bool _useDarkTheme;
 		private object _contentPhone = null;
 		private string _searchTerm = "";
 
@@ -410,6 +411,7 @@ public bool UseFluentStyles
 					Application.Current.Resources.MergedDictionaries.Remove(_fluentResources);
 				}
 #if HAS_UNO
+				// Force the in app styles to reload
 				Application.Current.Resources?.UpdateThemeBindings();
 				Uno.UI.ResourceResolver.UpdateSystemThemeBindings();
 				Application.PropagateThemeChanged(Windows.UI.Xaml.Window.Current.Content);
@@ -418,6 +420,20 @@ public bool UseFluentStyles
 			}
 		}
 
+		public bool UseDarkTheme
+		{
+			get => _useDarkTheme;
+			set
+			{
+				_useDarkTheme = value;
+				if (Windows.UI.Xaml.Window.Current.Content is FrameworkElement root)
+				{
+					root.RequestedTheme = _useDarkTheme ? ElementTheme.Dark : ElementTheme.Light;
+				}
+				RaisePropertyChanged();
+			}
+		}
+
 		public event System.ComponentModel.PropertyChangedEventHandler PropertyChanged;
 	}
 }
diff --git a/src/SamplesApp/SamplesApp.UnitTests.Shared/Controls/UITests/Views/Controls/SampleChooserControl.xaml b/src/SamplesApp/SamplesApp.UnitTests.Shared/Controls/UITests/Views/Controls/SampleChooserControl.xaml
index 9a0cdb924ec0..f547678abf14 100644
--- a/src/SamplesApp/SamplesApp.UnitTests.Shared/Controls/UITests/Views/Controls/SampleChooserControl.xaml
+++ b/src/SamplesApp/SamplesApp.UnitTests.Shared/Controls/UITests/Views/Controls/SampleChooserControl.xaml
@@ -49,7 +49,7 @@
 				<Setter Property="BorderThickness"
 						Value="0,0,0,1" />
 				<Setter Property="Background"
-						Value="{StaticResource Color08Brush}" />
+						Value="{StaticResource ApplicationPageBackgroundThemeBrush}" />
 				<Setter Property="Height"
 								Value="50" />
 			</Style>
@@ -252,7 +252,7 @@
 			</VisualStateGroup>
 		</VisualStateManager.VisualStateGroups>
 		<SplitView.Pane>
-			<Grid Background="{StaticResource Color08Brush}"
+			<Grid Background="{ThemeResource ApplicationPageBackgroundThemeBrush}"
 				  BorderBrush="LightGray"
 				  BorderThickness="0,0,1,0"
 				  toolkit:VisibleBoundsPadding.PaddingMask="All">
@@ -339,7 +339,7 @@
 								ContentTemplate="{StaticResource SearchList}" />
 
 				<!--NAVIGATION BUTTONS-->
-				<Border Background="{StaticResource Color08Brush}"
+				<Border Background="{ThemeResource ApplicationPageBackgroundThemeBrush}"
 						
 						BorderThickness="0,1,0,0"
 						BorderBrush="{StaticResource Color05Brush}"
@@ -438,6 +438,7 @@
 						<ColumnDefinition Width="Auto" />
 						<ColumnDefinition Width="Auto" />
 						<ColumnDefinition Width="Auto" />
+						<ColumnDefinition Width="Auto" />
 					</Grid.ColumnDefinitions>
 
 					<!-- Back Button -->
@@ -530,6 +531,11 @@
 							  Grid.Column="8"
 							  IsChecked="{Binding UseFluentStyles, Mode=TwoWay}"
 							  Style="{x:Null}"/>
+					<!-- Dark theme check box -->
+					<CheckBox Grid.Column="9"
+							  IsChecked="{Binding UseDarkTheme, Mode=TwoWay}">
+						<FontIcon FontFamily="{ThemeResource SymbolThemeFontFamily}" Glyph="&#xEC46;" />
+					</CheckBox>
 				</Grid>
 
 				<!-- Sample Content -->