Change text color for QML controls

Change text color for QML controls

I am using some QML controls like GroupBox and CheckBox which have text
associated with them. The default color of the text is black. However, I
have these items on a dark background and would prefer using white for the
text color. These items don't have a color property so I'm not sure what
to do.
CheckBox {
text: "Check Me"
}
Thanks in advanced!