<Canvas xmlns="http://schemas.microsoft.com/client/2007">
  <Glyphs Canvas.Top="10" Canvas.Left="10" FontUri="arial.ttf" FontRenderingEmSize="18" Fill="Black" UnicodeString="This is a Glyphs element using 24 point Arial font and a Black brush"/>

  <Glyphs Canvas.Top="30" Canvas.Left="10" FontUri="arial.ttf" FontRenderingEmSize="18" UnicodeString="This string should be invisible (no Fill)"/>

  <Glyphs Canvas.Top="50" Canvas.Left="10" FontUri="arial.ttf" Fill="Red" UnicodeString="This string should also be invisible (no FontRenderingEmSize)"/>

  <Glyphs Canvas.Top="70" Canvas.Left="10" FontUri="arial.ttf" FontRenderingEmSize="18" Fill="Blue" UnicodeString="This is the fourth Glyphs element, the middle two should be invisible"/>
</Canvas>
