Star.xaml

   
       

<Polygon xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
         xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
         Points="144 48, 200 222, 53 114, 235 114, 88 222"
         Fill="Red" 
         Stroke="Blue"
         StrokeThickness="5" />