def run(filepath):
    'Create a wallpaper image from a PNG file.'
    src = Image.open(filepath)
    target = swap_quadrants(src)
    paste_with_alpha(target, src, (0, 0), 16)
    return target
Create a wallpaper image from a PNG file.
def run(filepath):
    
    src = Image.open(filepath)
    target = swap_quadrants(src)
    paste_with_alpha(target, src, (0, 0), 16)
    return target