When transitioning from one state (e.g., button up) to another (e.g., button pressed)
the user expects and requires visual feedback. Often this is provided with animation: the button appears to descend. Creating this animation is greatly simplified by the Visual State Manager in Silverlight, and thus in Windows Phone 7.
To see this in a simple demonstration, let’s return to the form created in the previous tutorial, Styles, and examine the OK button.



