Code review comment for lp:~azzar1/unity8/remove-UbuntuShapeForItem

The destkop spread change breaks something.

How to reproduce:
 * go to the "source root" dir and run
      ln -s `pwd`/tests/graphics .
   (this i needed because it seems the test is a bit broken)
 * go to the builddir
 * run
    make tryDesktopStage
 * start the dialer and webbrowser
 * show the desktop spread
 * without your patch, moving the mouse cursor over each window changes the opacity/brightness/something of the icon of said window
 * with your patch the icon stays the same