Fix last commit

app/SubWindowHandle.cpp

@@ -35,11 +35,7 @@ SubWindowHandle::SubWindowHandle( QWidget * parent, UInt category ) :
   setFocusPolicy( Qt::WheelFocus );
   setAttribute( Qt::WA_DeleteOnClose );
   setBackgroundRole( QPalette::Background );
-  QPalette Pal(palette());
-  // set black background
-  //Pal.setColor(QPalette::Background, Qt::white);
-  //setPalette(Pal);
-  setAutoFillBackground( true );
+
   setWindowIcon( QIcon( ":/images/playuver.png" ) );
 
   // Create a new scroll area inside the sub-window