please include function showImage.

static ImageSurface showImagePixelated(MakesBufferedImage img) {
  ImageSurface is = new(img);
  imageSurface_pixelated(is);
  JFrame frame = showPackedFrame(jscroll(is));
  moveToTopRightCorner(frame);
  frameIcon(frame, showImage_defaultIcon);
  ret is;
}