static ImageSurface showZoomedImage_centered(final RGBImage image) {
  ret showZoomedImage_centered(image, 2);
}

static ImageSurface showZoomedImage_centered(S title, RGBImage image) {
  ret showZoomedImage_centered(title, image, 2);
}

static ImageSurface showZoomedImage_centered(S title, RGBImage image, double zoom) {
  ret setFrameTitle(showZoomedImage_centered(image, zoom), title);
}

static ImageSurface showZoomedImage_centered(final RGBImage image, final double zoom) {
  ret (ImageSurface) swingAndWait(func {
    ImageSurface is = showImage_centered(image);
    is.setZoom(zoom);
    packFrame(is);
    ret is;
  });
}