I make an application using WPF 4.0 (C#)

I want to know EasingFunction using in Windows 8 charm settings appeared.

![Windows 8 Setting Charm](https://i.imgur.com/LVYj9eW.jpg)

I use CubicEase, QuarticEase, PowerEase, ExponentialEase.. but I can't make
an animation like Windows 8.

How can I make an animation like windows 8 with Default based EasingFunction??