Prop for bottom sheet styling / color

[lyqht]

Right now it is default to white and has no shadow, but i would like to customize the bottom sheet so that it still looks good on white backgrounds without an overlay.

Here's an example without the prop at the moment on light mode.

It would look better if i can set it to a another color or add a shadow to the top border

[verdieping7]

and for the thumb :)