C# WPF .NET 4.0 ArrowRepeatButton, NumericUpDown, and TimeCtrl Controls

<ResourceDictionary xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
                    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
                    xmlns:local="clr-namespace:UpDownCtrls"
                    xmlns:Microsoft_Windows_Themes="clr-namespace:Microsoft.Windows.Themes;assembly=PresentationFramework.Luna"
                    x:Name="MyArrowButton">
    <local:ThicknessToMarginConverter x:Key="ThicknessToMarginConverter" />
    <Style TargetType="{x:Type local:ArrowRepeatButton}">
        <Setter Property="Focusable" Value="False"/>
        <Setter Property="IsTabStop" Value="False"/>
        <Setter Property="Template">
            <Setter.Value>
                <ControlTemplate TargetType="{x:Type local:ArrowRepeatButton}">
                    <Grid Margin="0,0,0,0">
                        <Microsoft_Windows_Themes:ScrollChrome x:Name="ScrollChrome" HasOuterBorder="false" 
                                                               Padding="0,0,0,0" SnapsToDevicePixels="False" ClipToBounds="True"
                                                               HorizontalAlignment="Stretch" RenderMouseOver="{TemplateBinding IsMouseOver}" 
                                                               RenderPressed="{TemplateBinding IsPressed}"
                                                               ThemeColor="Metallic"/>
                    </Grid>
                    <ControlTemplate.Triggers>
                        <Trigger Property="ButtonArrowType" Value="Down">
                            <Setter TargetName="ScrollChrome" Property="Microsoft_Windows_Themes:ScrollChrome.ScrollGlyph" Value="DownArrow"/>
                        </Trigger>
                        <Trigger Property="ButtonArrowType" Value="Up">
                            <Setter TargetName="ScrollChrome" Property="Microsoft_Windows_Themes:ScrollChrome.ScrollGlyph" Value="UpArrow" />
                        </Trigger>
                        <Trigger Property="ButtonArrowType" Value="Left">
                            <Setter TargetName="ScrollChrome" Property="Microsoft_Windows_Themes:ScrollChrome.ScrollGlyph" Value="LeftArrow" />
                        </Trigger>
                        <Trigger Property="ButtonArrowType" Value="Right">
                            <Setter TargetName="ScrollChrome" Property="Microsoft_Windows_Themes:ScrollChrome.ScrollGlyph" Value="RightArrow" />
                        </Trigger>
                    </ControlTemplate.Triggers>
                </ControlTemplate>
            </Setter.Value>
        </Setter>
    </Style>
 <!-- Other theme specific values here (that is, that are not used by RepeatArrowBotton) -->
    <Style x:Key="UpDownButtonsStyle" TargetType="{x:Type local:UpDownButtons}">
        <Setter Property="Margin" Value="{Binding BorderThickness, ElementName=TextBoxCtrl}"/>
        <Setter Property="BorderThickness" Value="1"/>
    </Style>
    <Style x:Key="TimeCtrlsGridStyle" TargetType="{x:Type Grid}">
        <Setter Property="Margin" Value="{Binding ElementName=TextBoxCtrl, 
                                Path=BorderThickness,
                                Converter={StaticResource ThicknessToMarginConverter},
                                ConverterParameter=true}"/>
    </Style>
</ResourceDictionary>