Warna splash inkwell tidak bekerja berkibar

InkWell(
        splashColor: Colors.grey,
        onTap: () {
          Future.delayed(const Duration(milliseconds: 300), () {
            Navigator.push(
                context, MaterialPageRoute(builder: (context) => NextPage()));
          });
        },
child:Somewidget,
)
Alexander Ibekason