static File cropToLeftScreenInPlace(File imageFile) {
  ret cropToLeftScreenInPlace(imageFile, screenWidth(), screenHeight());
}

static File cropToLeftScreenInPlace(File imageFile, int width, int height default Int.MAX_VALUE) {
  if (!isFile(imageFile)) null;
  
  loading "Crop image file" {
    BufferedImage img = loadImage2(imageFile);
    if (img.getWidth() <= width && img.getHeight() <= height) {
      print("Nothing to crop: " + imageFile);
      ret imageFile;
    }
    
    img = clipBufferedImage(img, 0, 0, width, height);
    File atticFile = appendToBaseFileName(imageFile, ".uncropped");
    renameFileVerbose(imageFile, atticFile);
    saveImageVerbose(imageFile, img);
    print("Image cropped to " + width + " pixels");
    ret imageFile;
  }
}

Began life as a copy of #1015317