The easing classes used by transitions or other tween system.

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	Class	Description
	Back	Easing equation function for a back easing.
	Bounce	Easing equation function for a bounce easing.
	Circular	Easing equation function for a circular easing.
	Cubic	Easing equation function for a cubic easing.
	Elastic	Easing equation function for an elastic easing.
	Exponential	Easing equation function for an exponential easing.
	None	Easing equation function for a simple linear tweening, with no easing.
	Quadratic	Easing equation function for a quadratic easing.
	Quartic	Easing equation function for a quartic easing.
	Quintic	Easing equation function for a quintic easing.
	Regular	Easing equation function for a regular easing.
	Sinusoidale	Easing equation function for a sinusoidal easing.
	Strong	Easing equation function for a stong easing.