CODE EXAMPLE FOR JAVASCRIPT

react material modal custom backdrop

<Dialog
	onClose={handleClose}
    aria-labelledby="simple-dialog-title"
    open={open}
    PaperProps={{
      style: {
        // backgroundColor: 'transparent',
        boxShadow: 'none',
      },
    }}
    BackdropProps={{ style: { backgroundColor: "#FFFFFFAA" } }}
></Dialog>