static JPanel jTiledBackground(S imageID) {
  ret jTiledBackground(loadImage2(imageID));
}

static JPanel jTiledBackground(final BufferedImage tileImage) {
  ret swing(func -> JPanel { ret new JPanel {
    protected void paintComponent(Graphics g) {  
      paintTiledBackground(this, g, tileImage);
    }
  }; });
}
  
static JPanel jTiledBackground(S imageID, Component contents) {
  ret jTiledBackground(loadImage2(imageID), contents);
}
  
static JPanel jTiledBackground(BufferedImage tileImage, Component contents) {
  JPanel panel = jTiledBackground(tileImage);
  panel.setLayout(new BorderLayout);
  panel.add(BorderLayout.CENTER, jtransparent_recursive(contents));
  ret panel;
}