Grainy Glow and OuterGlowBitmapEffect
<Page xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" x:Class="Microsoft.Samples.Graphics.RectangleExample" WindowTitle="Example"> <Canvas> <TextBlock Margin="3" FontSize="40" FontWeight="Bold" Foreground="Blue"> <TextBlock.Text>Grainy Glow</TextBlock.Text> <TextBlock.BitmapEffect> <OuterGlowBitmapEffect GlowColor="LimeGreen" GlowSize="20" Noise="0.5"></OuterGlowBitmapEffect> </TextBlock.BitmapEffect> </TextBlock> </Canvas> </Page>