It's released and maintained for Silverlight 2 or higher. In layman's terms, Tweened helps you move things around on the screen using only code, instead of the timeline. The general idea of a tweening Class is that dynamic animation and transitions (created by code) are easier to maintain and control, and more stable than animation based on the regular Silverlight timeline. The Tweened syntax is created with simplicity of use in mind, while still allowing access to more advanced features.
the general idea is to make doable the automatic creation of Storyboards resources type. Internally class Tween operates two Storyboards, the first is used for animation to go, the other is used if necessary to animation back. Storyboards Each of these contains a number of objects DoubleAnimation XAML. They serve as animated sequences. Each DoubleAnimation refers to an Xaml object and a lively targeted property, for example X or ScaleX. So a tween can animate lot of objects in several different equation of movement with different duration and behavior. For example a double animation could loop.


URL :: http://library.tweened.org/
Online Documentation :: http://library.tweened.org/doc/html/
Chm Documentation :: http://library.tweened.org/doc/Tweened.chm