How to change textstyle of PersistentBottomNavBarItem?

[mo7amedaliEbaid]

PersistentBottomNavBarItem(
              icon: Icon(
                Icons.home,
                color: Colors.white,
              ),
              title: "Home",
              textStyle: TextStyle(color: Colors.white),
              activeColorPrimary: Colors.green,
              inactiveColorPrimary: Colors.grey,
              inactiveColorSecondary: Colors.purple),

this textstyle doesn't work.