Returns
true if the effect is turned on (the Effect switch
is
selected).
Argument type: name is a String.
Returns a property within an effect. Effect control points are always in layer space. Example:
effect("Bulge").param("Bulge Height")
Argument type: index is a Number.
Returns a property within an effect. Effect control points are always in layer space. For example, effect("Bulge").param(4) returns the Bulge Height property.