code: @Override
      public final Scene moveToTop(final Layer layer)
      {
          if ((null != layer) && (LienzoCore.IS_CANVAS_SUPPORTED))
          {
              final int size = getElement().getChildCount();
  
              if (size < 2)
              {
                  return this;
              }
              final DivElement element = layer.getElement();
  
              getElement().removeChild(element);
  
              getElement().appendChild(element);
  
              final NFastArrayList<Layer> layers = getChildNodes();
  
              if (null != layers)
              {
                  layers.moveToTop(layer);
              }
          }
          return this;
      }
docs: Moves the layer to the top of the layers stack in this scene.
  
  @param layer