Default
The animation has the speed defined in the original definition. This is the default.
Ease
The animation has a slow start, then fast, before it ends slowly
EaseIn
The animation has a slow start.
EaseInOut
The animation has both a slow start and a slow end.
EaseOut
The animation has a slow end.
Linear
The animation has the same speed from start to end.
Returns or sets the speed curve of an animation.