Qml MenuItem 改变文字颜色 [复制链接]

Menu {
        title: "文件(&F)"
        MenuItem {
        id:openMenu
           text:"打开"
           shortcut: "Ctrl+s"
        }
        MenuItem {
            text: "关闭"
            shortcut: "Ctrl+p"
        }
        MenuItem {
            text: "你好"
            shortcut: "Ctrl+,"
        }
}
请问怎么修改Menu 和MenuItem 的字体颜色，我尝试用style但是发现itemDelegate是只读的 或者说 我要自己定义一个itemDelegate ？最好有资料或者例子 谢谢给位

Menu{
    property int size: FlatGlobal.sizeDefault
    property ActiveColor type : FlatGlobal.typeDefault;

    // because the frame color is same as typeInverse.color;
    onTypeChanged:{
        if(type.objectName == FlatGlobal.typeInverse.objectName){
            type = Qt.binding(function(){
              return FlatGlobal.typeDefault;
            });
        }
    }

    style:MenuStyle {
        frame:Rectangle{
            color:FlatGlobal.typeInverse.inactiveColor;
            //radius: FlatGlobal.radius;
        }
        itemDelegate.background : Rectangle {
            color:FlatGlobal.typeInverse.inactiveColor;
            //radius: FlatGlobal.radius;
        }
        itemDelegate.label: Label {
            font.family: FlatGlobal.font.family;
            font.pointSize: size;
            text:styleData.text
            color:styleData.selected ? type.activeColor :type.inactiveColor
        }
    }
}