A DropShadowEffect can be used to make any WPF control cast a shadow. In order to use this on a text, we can simply assign the effect to the Effect property of the TextBlock.
DropShadowEffect contains properties to set the shadow depth, the direction, color of the shadow, opacity and a blur radius. This gives the shadow a soft edge.
<!-- Einfacher Schatten -->
<TextBlock Text="Text mit Schatten" Foreground="Green">
<TextBlock.Effect>
<DropShadowEffect ShadowDepth="4" Direction="330" Color="Black" opacity="0.5" BlurRadius="4"/>
</TextBlock.Effect>
</TextBlock>
