New Post: Removing white-out when inactiviating time picker

I am able to turn it off using XAML Spy by changing the Opacity setting to 0. See here:
XAML Spy pic

I am using Windows 7.

The top picture is without ExpressionDark enabled (it still happens) and the second is with the Opacity setting set to 0 via XAML Spy:
Album

Here is the WaterMarkTextBox XAML from XAML Spy, you can see the three borders, the first of which (x:Name = "Border") I need to set opacity to 0 (adding it as a window resource like in the code i posted previously):

<WatermarkTextBox x:Name="PART_TextBox" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" AllowDrop="True" Background="#00FFFFFF" CaretIndex="0" Focusable="True" Foreground="#FFFFFFFF" HorizontalContentAlignment="Right" IsEnabled="False" MinWidth="20" Opacity="0" RenderSize="57, 15.96" SelectedText="12" SelectionBrush="#FF3399FF" SelectionLength="2" SelectionStart="0">
  <WatermarkTextBox.BorderBrush>
    <LinearGradientBrush EndPoint="0, 20" MappingMode="Absolute">
      <GradientStopCollection>
        <GradientStop Color="#FFABADB3" Offset="0.05" />
        <GradientStop Color="#FFE2E3EA" Offset="0.07" />
        <GradientStop Color="#FFE3E9EF" Offset="1" />
      </GradientStopCollection>
    </LinearGradientBrush>
  </WatermarkTextBox.BorderBrush>
  <Grid AllowDrop="True" IsEnabled="False" RenderSize="57, 15.96">
    <Border x:Name="Border" AllowDrop="True" Background="#FFF4F4F4" BorderBrush="#FFADB2B5" CornerRadius="1, 1, 1, 1" IsEnabled="False" RenderSize="57, 15.96" />
    <Border x:Name="MouseOverVisual" AllowDrop="True" CornerRadius="1, 1, 1, 1" IsEnabled="False" Opacity="0" RenderSize="57, 15.96">
      <Border.BorderBrush>
        <LinearGradientBrush EndPoint="0, 1">
          <GradientStopCollection>
            <GradientStop Color="#FF5794BF" Offset="0.05" />
            <GradientStop Color="#FFB7D5EA" Offset="0.07" />
            <GradientStop Color="#FFC7E2F1" Offset="1" />
          </GradientStopCollection>
        </LinearGradientBrush>
      </Border.BorderBrush>
    </Border>
    <Border x:Name="FocusVisual" AllowDrop="True" CornerRadius="1, 1, 1, 1" IsEnabled="False" Opacity="0" RenderSize="57, 15.96">
      <Border.BorderBrush>
        <LinearGradientBrush EndPoint="0, 1">
          <GradientStopCollection>
            <GradientStop Color="#FF3D7BAD" Offset="0.05" />
            <GradientStop Color="#FFA4C9E3" Offset="0.07" />
            <GradientStop Color="#FFB7D9ED" Offset="1" />
          </GradientStopCollection>
        </LinearGradientBrush>
      </Border.BorderBrush>
    </Border>
    <ScrollViewer x:Name="PART_ContentHost" AllowDrop="True" Background="#00FFFFFF" CanContentScroll="True" Foreground="#FF6D6D6D" HorizontalScrollBarVisibility="Hidden" IsEnabled="False" IsManipulationEnabled="True" IsTabStop="False" PanningMode="VerticalFirst" RenderSize="57, 15.96" VerticalScrollBarVisibility="Hidden">
      <Grid AllowDrop="True" Background="#00FFFFFF" IsEnabled="False" RenderSize="57, 15.96">
        <Rectangle Grid.Column="1" Grid.Row="1" AllowDrop="True" Fill="#FFF0F0F0" IsEnabled="False" RenderSize="0, 0" Stretch="Fill" />
        <ScrollContentPresenter AllowDrop="True" CanContentScroll="True" CanHorizontallyScroll="False" CanVerticallyScroll="False" IsEnabled="False" RenderSize="57, 15.96">
          <TextBoxView AllowDrop="True" IsEnabled="False" Margin="2, 0, 2, 0" RenderSize="53, 15.96">
            <TextBoxLineDrawingVisual Opacity="1">
              <TextBoxLineDrawingVisual.Offset />
            </TextBoxLineDrawingVisual>
          </TextBoxView>
          <AdornerLayer AllowDrop="True" IsEnabled="False" RenderSize="57, 15.96" />
        </ScrollContentPresenter>
        <ScrollBar Grid.Column="1" AllowDrop="True" Cursor="Arrow" Foreground="#FF000000" IsEnabled="False" Maximum="0" MinWidth="17" RenderSize="0, 0" ViewportSize="15.96" Visibility="Collapsed" Width="17">
          <ScrollBar.Background>
            <LinearGradientBrush EndPoint="1, 0">
              <GradientStopCollection>
                <GradientStop Color="#FFE1E1E1" />
                <GradientStop Color="#FFEDEDED" Offset="0.2" />
                <GradientStop Color="#FFEDEDED" Offset="0.8" />
                <GradientStop Color="#FFE3E3E3" Offset="1" />
              </GradientStopCollection>
            </LinearGradientBrush>
          </ScrollBar.Background>
        </ScrollBar>
        <ScrollBar Grid.Row="1" AllowDrop="True" Cursor="Arrow" Foreground="#FF000000" Height="17" IsEnabled="False" Maximum="0" MinHeight="17" Orientation="Horizontal" RenderSize="0, 0" ViewportSize="53" Visibility="Collapsed">
          <ScrollBar.Background>
            <LinearGradientBrush EndPoint="0, 1">
              <GradientStopCollection>
                <GradientStop Color="#FFE1E1E1" />
                <GradientStop Color="#FFEDEDED" Offset="0.2" />
                <GradientStop Color="#FFEDEDED" Offset="0.8" />
                <GradientStop Color="#FFE3E3E3" Offset="1" />
              </GradientStopCollection>
            </LinearGradientBrush>
          </ScrollBar.Background>
        </ScrollBar>
      </Grid>
    </ScrollViewer>
    <ContentPresenter x:Name="PART_WatermarkHost" AllowDrop="True" HorizontalAlignment="Right" IsEnabled="False" IsHitTestVisible="False" RenderSize="0, 0" VerticalAlignment="Top" Visibility="Collapsed">
      <ContentControl AllowDrop="True" Foreground="#FF808080" IsEnabled="False" IsHitTestVisible="False" RenderSize="0, 0">
        <ContentPresenter AllowDrop="True" IsEnabled="False" IsHitTestVisible="False" RenderSize="0, 0" />
      </ContentControl>
    </ContentPresenter>
  </Grid>
</WatermarkTextBox>