How to change the drop shadow (or shade) from a ModalBottomSheet in Flutter

Question

A ModalBottomSheet automatically renders a shade or shadow over the underling Screen.

Setting background color to transparant in the showModalBottomSheet method only effects the area holding the child widget.
It does not remove the drop shadow under the modal.

Can I remove or change the opacity of the shadow?

Solution

showModalBottomSheet(
        barrierColor: Colors.white.withOpacity(0),
...

Note that I am using the property 'barrierColor'