/** Construct individual components */
   private Label title = new Label ("Color adjuster", Label.CENTER);

   private Label redLabel = new Label ("Red:");
   private TextField redTextField = new TextField ("0",5);
   private Scrollbar redSlider = new Scrollbar(Scrollbar.HORIZONTAL,0,1,0,255);

   private Label greenLabel = new Label ("Green:");
   private TextField greenTextField = new TextField ("0",5);
   private Scrollbar greenSlider = new Scrollbar(Scrollbar.HORIZONTAL,0,1,0,255);

   private Label blueLabel = new Label ("Blue:");
   private TextField blueTextField = new TextField ("0",5);
   private Scrollbar blueSlider = new Scrollbar(Scrollbar.HORIZONTAL,0,1,0,255);
   
   private Label hexTextField = new Label ("#000000");
   private ColorBlop colorBlop = new ColorBlop(Color.white);

   private ColorListener listener = new ColorListener (this);

   private ColorPanel redGroup = 
     new ColorPanel(redLabel, redTextField, redSlider, listener);
   private ColorPanel greenGroup = 
     new ColorPanel(greenLabel, greenTextField, greenSlider, listener);
   private ColorPanel blueGroup =
     new ColorPanel(blueLabel, blueTextField, blueSlider, listener);