Frosted Pane Blurring Background - Dynamic
Here we create a Bitmap of content under a Rectangle and blur it to create a frosted pane effect. Try setting the BlurEffect(50,0) or BlurEffect(0,50) also try other effects instead - warning can be processor intensive. The rectangle is optionally draggable. Also see the Static version which blurs once and uses a mask so is less intensive
by Dr Abstract