How can I change the color of an image in silverlight/WP7 (Color Mask)?

Question

I have a toggle button with a png that has a transparent background and a black foreground. If the button is selected then I want the black color of the image to change to a col

Answer 1

I would try OpacityMask approach. Basicaly it should look something like this:

by changing rectangle's fill property you would get different colored image.