Yesterday I recorded a screencast to demonstrate how to colorize images in a Windows Phone 7 application using Expression Blend 4. In Silverlight or WPF I use a shader to colorize images, but because shaders aren’t available in the same way in Silverlight for Windows Phone I had do come up with a different technique. In this tutorial I show how to use application bar icons as an opacity mask on rectangles. I set the fill brush of these rectangles to the default phone accent brush.
Here’s the video: