!752

static JFrame frame;
static JLabel l;
static BufferedImage theimage, inverted;
static ImageIcon ii1, ii2;

static int delay = 0, delay2 = 210;

p {
  theimage = scaleImage(loadBufferedImage("#1004501"), 1.5);
  l = jcenterimage(theimage);
  l.setOpaque(true);
  l.setBackground(Color.black);
  onDoubleClick(l, r { frame.dispose() });
  frame = showFullScreen(l);
  
  pcall {
    call(_getClass("com.sun.java.swing.SwingUtilities3"), "setVsyncRequested", frame, true);  
  }
  
  effect();
}

svoid effect {
  invertImage(inverted = cloneBufferedImage(theimage));
  ii1 = imageIcon(theimage);
  ii2 = imageIcon(inverted);
  
  effect_go();
}
  
svoid effect_go {
  awtIfNecessary {
    l.setIcon(ii2);
    //l.repaint();
    swingAfter(frame, delay, r {
      l.setIcon(ii1);
      //l.repaint();
      swingAfter(frame, delay2, "effect_go");
    });
  }
}

Began life as a copy of #1004507