sclass TiledBackgroundDesktopPane extends JDesktopPane {
  BufferedImage tileImage;
  
  *(BufferedImage *tileImage) {}
  
  protected void paintComponent(Graphics g) {  
    paintTiledBackground_centered(this, g, tileImage);
  }
}

static JDesktopPane jTiledBackgroundDesktopPane(S imageID) {
  final BufferedImage tileImage = loadImage2(imageID);
  ret swingNu(TiledBackgroundDesktopPane, tileImage);
}