windows phone 7 - How to tell if the user has selected a Light or Dark theme -

Is there a way to tell if the user has chosen a light or dark theme?

Thank you!

There is a property to test for this, rather it should be compared to the actual processing color.

  Visibility V = (visibility) resource ["phonelighttheme visibility"]; If (v == System.Windows.Visibility.Visible) {// light subject} is other {// black topic}