public override IEnumerable<Timeline> CreateAnimation(FrameworkElement element) { return new Timeline[] { element.AnimateProperty(AnimationProperty.ScaleX) .AddEasingKeyFrame(0.0, 1.07*Amplify) .AddEasingKeyFrame(Duration, 1.0, new BackEase {Amplitude = 0.4, EasingMode = EasingMode.EaseIn}), element.AnimateProperty(AnimationProperty.ScaleY) .AddEasingKeyFrame(0.0, 1.07*Amplify) .AddEasingKeyFrame(Duration, 1.0, new BackEase {Amplitude = 0.4, EasingMode = EasingMode.EaseIn}) }; }