/** Function to clear the effect which shows that the user selected a ball. */
 public void clearSelectionHints() {
   effectPainter.clearEffect(AbstractEffect.IdBorder);
 }
 /** Function to clear the effect which shows the elimination if user confirm the gesture. */
 public void clearBonusEliminationHints() {
   effectPainter.clearEffect(AbstractEffect.IdFill);
 }
 /** Function to clear the effect which shows the elimination if user confirm the gesture. */
 public void clearUserMovingEliminationHints() {
   effectPainter.clearEffect(AbstractEffect.IdFill);
 }