use named control binding to remove redundant property

Author: LeftofZen

AvaGui/ViewModels/ImageTableViewModel.cs

@@ -154,14 +154,11 @@ public List<Bitmap> Images
 		List<Bitmap> images;
 
 		[Reactive]
-		public int SelectedImageIndex { get; set; }
+		public int SelectedImageIndex { get; set; } = -1;
 
 		public UIG1Element32? SelectedG1Element
 			=> SelectedImageIndex == -1 || Parent.G1Elements.Count == 0 ? null : new UIG1Element32(SelectedImageIndex, GetImageName(Parent, SelectedImageIndex), Parent.G1Elements[SelectedImageIndex]);
 
-		[Reactive]
-		public Color BackgroundColour { get; set; } = Colors.Magenta;
-
 		public static string GetImageName(ILocoObject locoObj, int counter)
 		{
 			ILocoImageTableNames? its = null;

AvaGui/ViewModels/ObjectEditorViewModel.cs

@@ -67,16 +67,10 @@ public void SelectedObjectChanged()
 		{
 			if (CurrentObject?.LocoObject != null)
 			{
-				var oldImageTableColour = Colors.Magenta;
-				if (ExtraContentViewModel is ImageTableViewModel itvm)
-				{
-					oldImageTableColour = itvm.BackgroundColour;
-				}
-
 				StringTableViewModel = new(CurrentObject.LocoObject.StringTable);
 				ExtraContentViewModel = CurrentObject.LocoObject.Object is SoundObject
 					? new SoundViewModel(CurrentObject.LocoObject)
-					: new ImageTableViewModel(CurrentObject.LocoObject, Model.PaletteMap) { BackgroundColour = oldImageTableColour };
+					: new ImageTableViewModel(CurrentObject.LocoObject, Model.PaletteMap);
 			}
 			else
 			{

AvaGui/Views/MainWindow.axaml

@@ -154,7 +154,7 @@
 						</DockPanel>
 						<Button.Flyout >
 							<Flyout>
-								<ColorView IsColorModelVisible="False" IsColorSpectrumVisible="False" IsComponentSliderVisible="False" IsColorComponentsVisible="False" Name="ImageBackgroundColorView" Color="{Binding BackgroundColour}" />
+								<ColorView  Name="ImageBackgroundColorView" IsColorModelVisible="False" IsColorSpectrumVisible="False" IsColorComponentsVisible="False" />
 							</Flyout>
 						</Button.Flyout>
 					</Button>
@@ -165,7 +165,7 @@
 					</StackPanel>
 				</Border>
 				<Border BorderThickness="1" BorderBrush="Gray" CornerRadius="4">
-					<ListBox ItemsSource="{Binding Images}" SelectedIndex="{Binding SelectedImageIndex}" Background="{Binding BackgroundColour, ConverterParameter={x:Static Brushes.Transparent}, Converter={StaticResource ColorToBrushConverter}}">
+					<ListBox ItemsSource="{Binding Images}" SelectedIndex="{Binding SelectedImageIndex}" Background="{Binding #ImageBackgroundColorView.Color, ConverterParameter={x:Static Brushes.Transparent}, Converter={StaticResource ColorToBrushConverter}}">
 						<ListBox.ItemsPanel>
 							<ItemsPanelTemplate>
 								<WrapPanel/>