如何在弯曲的导航栏中更改图标的颜色

Question

我想更改图标的颜色，但是找不到正确的代码来更改颜色。

int _pageIndex = 0;
GlobalKey _bottomNavigationKey = GlobalKey();
List pages = [
MyRoute(
iconData: Icons.home,
page:HomePage(),
 ),]
BottomNavigationBar: CurvedNavigationBar(
    key: _bottomNavigationKey,
    index: 0,
    color: Colors.indigo[700],
    buttonBackgroundColor: Colors.indigoAccent[100],
    backgroundColor: Colors.white,
    animationCurve: Curves.easeInOut,
    animationDuration: Duration(milliseconds:300),
    onTap: (index) {
      setState(() {
        _pageIndex = index; }); },),