<Page xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
HorizontalAlignment="Center" VerticalAlignment="Center">
<Viewbox>
<Grid Margin="0,0,5,0" >
<Ellipse>
<Ellipse.Fill>
<RadialGradientBrush Center="0.5,0.1" GradientOrigin="0.5,0.1" RadiusX="0.7" RadiusY="0.5">
<GradientStop Color="#efff" Offset="0" />
<GradientStop Color="Transparent" Offset="1" />
</RadialGradientBrush>
</Ellipse.Fill>
</Ellipse>
</Grid>
</Viewbox>
</Page>