Изменение кнопки

[Slant-shadow]

<Window x:Class="WpfApplication12.MainWindow"        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"        Title="MainWindow" Height="350" Width="525">    <Window.Resources>            <ControlTemplate x:Key="TemplateB" TargetType="Button">            <Border BorderBrush="Orange" BorderThickness="3" CornerRadius="2" Name="bor"                  TextBlock.Foreground="Red">                <Border.Background>                    <LinearGradientBrush>                        <GradientStopCollection>                            <GradientStop Offset="0" Color="Yellow"></GradientStop>                            <GradientStop Offset="1" Color="Green"></GradientStop>                        </GradientStopCollection>                    </LinearGradientBrush>                </Border.Background>                <ContentPresenter RecognizesAccessKey="True" Margin="{TemplateBinding Padding}"></ContentPresenter>            </Border>            <ControlTemplate.Triggers>                <Trigger Property="IsMouseOver" Value="true">                    <Setter TargetName="bor" Property="Background" Value="Green"></Setter>                </Trigger>                <!--Trigger Property="IsPressed" Value="True">                    <Setter TargetName="bor" Property="Background" Value="Red"></Setter>                </Trigger-->            </ControlTemplate.Triggers>        </ControlTemplate>        <ControlTemplate x:Key="TemplateA" TargetType="Button">            <Border Name="bor"                  TextBlock.Foreground="Red">                <Border.Background>                    <LinearGradientBrush>                        <GradientStopCollection>                            <GradientStop Offset="0" Color="Yellow"></GradientStop>                            <GradientStop Offset="1" Color="Green"></GradientStop>                        </GradientStopCollection>                    </LinearGradientBrush>                </Border.Background>                <ContentPresenter RecognizesAccessKey="True" Margin="{TemplateBinding Padding}"></ContentPresenter>                <Border.Triggers>                    <EventTrigger RoutedEvent="Border.MouseDown">                        <EventTrigger.Actions>                            <BeginStoryboard>                                <Storyboard>                                    <ColorAnimationUsingKeyFrames Storyboard.TargetProperty="(Button.Background).(SolidColorBrush.Color)">                                        <LinearColorKeyFrame KeyTime="00:00:00" Value="Red"></LinearColorKeyFrame>                                    </ColorAnimationUsingKeyFrames>                                </Storyboard>                            </BeginStoryboard>                        </EventTrigger.Actions>                    </EventTrigger>                </Border.Triggers>            </Border>            <ControlTemplate.Triggers>                <Trigger Property="IsMouseOver" Value="true">                    <Setter TargetName="bor" Property="Background" Value="Green"></Setter>                </Trigger>                <Trigger Property="IsPressed" Value="True">                <Setter TargetName="bor"  Property="Background" Value="Red"></Setter>                </Trigger>            </ControlTemplate.Triggers>            </ControlTemplate>    </Window.Resources>    <Button Margin="10" Width="130" Height="130" Template="{StaticResource TemplateB}">    <Button Margin="65,0,0,0" Width="65" Height="130" Template="{StaticResource TemplateA}"></Button>    </Button></Window>

Помогите найти ошибку, необходимо по нажатию кнопки, чтобы она меня цвет наполовину, и цвет держался несколько секунд, у меня она просто меняет цвет