static S uploadToImageServer_new(BufferedImage img, S name) {
  ret uploadToImageServer_new(null, img, name);
}

static S uploadToImageServer_new(File f, BufferedImage img, S name) {
  byte[] imgData = f == null ? toPNG(img) : loadBinaryFile(f);
  ret uploadToImageServer_rawBytes(imgData, name);
}