A cubic animation curve that starts quickly and ends slowly. This curve is a flipped version of Curves.easeInCubic.
The result is a safe sweet spot when choosing a curve for animating a widget's position entering or already inside the viewport.
Compared to Curves.easeOutQuad, this curve is slightly steeper.
Derived from Robert Penner’s easing functions.
static const Cubic easeOutCubic = Cubic(0.215, 0.61, 0.355, 1.0);