// Note: Doesn't show anything if are is not completely in allowed bounds

static JWindow freeFloatingAnimation(S imageID, int x, int y, double seconds) {
  ret disposeWindowAfter(iround(seconds*1000),
    freeFloatingAnimation(imageID, x, y));
}

static JWindow freeFloatingAnimation(final S imageID, final int x, final int y) {
  ret (JWindow) swingAndWait(func {
    JLabel label = new JLabel(imageIcon(imageID));
    label.setOpaque(false);
    new JWindow w;
    w.setLocation(x, y);
    w.add(label); // add it to get appropriate size through pack()
    w.pack();
    Rectangle maxBounds = maxWindowBounds();
    Rectangle r = w.getBounds();
    if (!maxBounds.contains(r)) null;
    /*w.setLocation(
      max(0, min(x, maxBounds.x+maxBounds.width-w.getWidth())),
      max(0, min(y, maxBounds.y+maxBounds.height-w.getHeight())));*/
    
    Rectangle r2 = intersectWithScreen(r);
    BufferedImage background = shootScreen2(r2);
    //w.setLayout(null);
    w.remove(label);
    new JLayeredPane layeredPane;
    Rectangle bounds = new Rectangle(0, 0, w.getContentPane().getWidth(), w.getContentPane().getHeight());
    w.add(layeredPane);
    JLabel lBackground = new JLabel(imageIcon(background));
    lBackground.setBounds(0, 0, r2.width, r2.height);
    layeredPane.add(lBackground, boxed(1));
    label.setBounds(bounds);
    layeredPane.add(label, new Int(2));
    revalidate(w);
    
    w.setAlwaysOnTop(true);
    w.setVisible(true);
    ret w;
  });
}

Began life as a copy of #1005622