OptionalalternateOptionaleasedefaults to Easing.linear
OptionalintentWhat the motion is for. decorative (the default: a slide, spin, zoom or anything
large or peripheral) collapses under reduced motion; meaningful is shortened
instead, so state that motion conveys is still readable. See core.MotionIntent.
A non-vestibular variant to run instead of
applyunder reduced motion, for the case the preference asks for rather than removal:(t) => (sprite.alpha = t)beside anapplythat slides and fades. It runs over the shortened duration, not the full one. Not used when the preference is off.