Как я могу решить эту проблему с помощью DataBInding?

В этом проекте я хочу создать пиксельную раскраску.

<ScrollViewer HorizontalScrollBarVisibility = "Auto"
              VerticalScrollBarVisibility = "Auto">
    <ItemsControl ItemsSource = "{Binding ColorMatrix}">
        <ItemsControl.ItemTemplate>
            <DataTemplate>
                <ItemsControl ItemsSource = "{Binding}">
                    <ItemsControl.ItemsPanel>
                        <ItemsPanelTemplate>
                            <StackPanel Orientation = "Horizontal"/>
                        </ItemsPanelTemplate>
                    </ItemsControl.ItemsPanel>
                    <ItemsControl.ItemTemplate>
                        <DataTemplate>
                            <pxl:Pixel 
                                Style = "{StaticResource Pixel}"
                                PrimaryColor = "{Binding Converter = {StaticResource ColorConverter}}"/>
                        </DataTemplate>
                    </ItemsControl.ItemTemplate>
                </ItemsControl>
            </DataTemplate>
        </ItemsControl.ItemTemplate>
    </ItemsControl>
</ScrollViewer>

ColoringBookView.xaml

Это просто вид массива Color[][].

ColorMatrix — это тип Color[][]

public class ColorConverter : IValueConverter
{
    public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
    {
        if (value is System.Drawing.Color drawingColor)
        {
            return Color.FromArgb(drawingColor.A, drawingColor.R, drawingColor.G, drawingColor.B);
        }
        return Colors.Black; 
    }

    public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
    {
        return null;
    }
}

ColoreConverter.cs

public class Pixel : CheckBox
{
    public static readonly DependencyProperty PrimaryColorProperty = DependencyProperty.Register("PrimaryColor", typeof(Color), typeof(Pixel));
    public static readonly DependencyProperty AccentColorProperty = DependencyProperty.Register("AccentColor", typeof(Color), typeof(Pixel));
    public static readonly DependencyProperty IsDrawedProperty = DependencyProperty.Register("IsDrawed", typeof(bool), typeof(Pixel));

    public Color PrimaryColor
    {
        get { return (Color)GetValue(PrimaryColorProperty); }
        set { SetValue(PrimaryColorProperty, value); }
    }
    public Color AccentColor
    {
        get { return (Color)GetValue(AccentColorProperty); }
        set { SetValue(AccentColorProperty, value); }
    }
    public bool IsDrawed
    {
        get { return (bool)GetValue(IsDrawedProperty); }
        set { SetValue(IsDrawedProperty, value); }
    }
}

Pixel.cs

Это CustomControl для WPF.

<ResourceDictionary xmlns = "http://schemas.microsoft.com/winfx/2006/xaml/presentation"
                    xmlns:x = "http://schemas.microsoft.com/winfx/2006/xaml"
                    xmlns:pxl = "clr-namespace:PXL.Core.Theme"
                    xmlns:converters = "clr-namespace:PXL.Core.Converters">

    <Style TargetType = "{x:Type pxl:Pixel}" x:Key = "Pixel">
        <Setter Property = "Template">
            <Setter.Value>
                <ControlTemplate TargetType = "{x:Type pxl:Pixel}">
                    <Grid>
                        <Rectangle Height = "30" Width = "30">
                            <Rectangle.Fill>
                                <SolidColorBrush Color = "{TemplateBinding PrimaryColor}"/>
                            </Rectangle.Fill>
                        </Rectangle>
                        <TextBlock Text = "Pixel" Background = "{TemplateBinding PrimaryColor}" Foreground = "{TemplateBinding PrimaryColor}"/>
                    </Grid>
                </ControlTemplate>
            </Setter.Value>
        </Setter>
    </Style>
</ResourceDictionary>

Pixel.xaml

У меня проблемы с привязкой данных, но я не понимаю, в чем дело.

TextBlock.Background и TextBlock.Foreground в Pixel.xaml не изменяются.