WPF 呼吸灯特效

path >> Ellipse的呼吸灯特效

<Window x:Class="NotifyLight.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" WindowStartupLocation="CenterScreen">
<Window.Resources>

<Storyboard x:Key="OnLoaded" RepeatBehavior="Forever" AutoReverse="True"  >
<ColorAnimationUsingKeyFrames Storyboard.TargetProperty="(Shape.Fill).(SolidColorBrush.Color)" Storyboard.TargetName="Ellipse">
<EasingColorKeyFrame KeyTime="0:0:1" Value="Transparent"/>
</ColorAnimationUsingKeyFrames>
</Storyboard>
</Window.Resources>
<Window.Triggers>
<EventTrigger RoutedEvent="FrameworkElement.Loaded">
<BeginStoryboard  Storyboard="{StaticResource OnLoaded}"/>
</EventTrigger>
</Window.Triggers>
    <Grid Background="#0D6299">
         <Ellipse x:Name="Ellipse" Height="10" Width="10" Fill="GreenYellow" >
          <Ellipse.Effect>
            <DropShadowEffect Opacity="1" ShadowDepth="0" Color="GreenYellow" BlurRadius="200" Direction="10"></DropShadowEffect>
          </Ellipse.Effect>
         </Ellipse>
    </Grid>
    
</Window>