Color animate based on Radio Button Click event


   
      
<Page xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
      xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
      Background="{x:Static SystemColors.WindowBrush}"
      Name="page">

    <Page.Resources>
        <Style TargetType="{x:Type RadioButton}">
            <Setter Property="Margin" Value="6" />
        </Style>
    </Page.Resources>

    <StackPanel HorizontalAlignment="Center"
                VerticalAlignment="Center"
                Background="{DynamicResource 
                                {x:Static SystemColors.ControlBrushKey}}">

        <RadioButton Content="Red">
            <RadioButton.Triggers>
                <EventTrigger RoutedEvent="RadioButton.Checked">
                    <BeginStoryboard>
                        <Storyboard>
                            <ColorAnimation 
                                Storyboard.TargetName="page"
                                Storyboard.TargetProperty="Background.Color"
                                To="Red" Duration="0:0:1" />
                        </Storyboard>
                    </BeginStoryboard>
                </EventTrigger>
            </RadioButton.Triggers>
        </RadioButton>

    </StackPanel>
</Page>