title: Groupbox title colour
body: <p>I have a form, I have turned the background black and foreground white. </p>
  
  <p>I put a groupbox on the page and items in the group box. </p>
  
  <p>I change the forecolor of the groupbox to white and the labels for the items it contains all turn white. But the groupbox title stays black.... </p>
  
  <p>I have tried <code>groupbox.forecolor = color.white;</code> but to no avail. How can I change the colour of the title?</p>