easeOutCirc constant
A cubic animation curve that starts quickly and ends slowly. This curve is effectively the top-left quarter of a circle.
Like Curves.easeOutExpo, this curve is fairly dramatic and will reduce the clarity of an animation if not given a longer duration.
Derived from Robert Penner’s easing functions.
Implementation
static const Cubic easeOutCirc = Cubic(0.075, 0.82, 0.165, 1.0);