static BufferedImage scaleBufferedImageToFit(int w, int h default w, BufferedImage img) {
  int iw = img.getWidth(), ih = img.getHeight();
  double imgScale = max(doubleRatio(h, ih), doubleRatio(w, iw));
  ret scaleImage(img, imgScale);
}

static BufferedImage scaleBufferedImageToFit(BufferedImage img, int w, int h default w) {
  ret scaleBufferedImageToFit(w, h, img);
}