Animating nested properties
<Page xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" HorizontalAlignment="Stretch" VerticalAlignment="Stretch"> <Ellipse Fill="Red" Height="100" Width="200"> <Ellipse.Triggers> <EventTrigger RoutedEvent="Ellipse.Loaded"> <BeginStoryboard> <Storyboard> <ColorAnimation Storyboard.TargetProperty="(Ellipse.Fill).(SolidColorBrush.Color)" Duration="0:0:7" From="Red" To="Purple" RepeatBehavior="Forever" AutoReverse="True" /> </Storyboard> </BeginStoryboard> </EventTrigger> </Ellipse.Triggers> </Ellipse> </Page>