docs: def convert_to_rgb(img):
      """
      Convert an image to RGB if it isn't already RGB or grayscale
      """
      if img.mode == 'CMYK' and HAS_PROFILE_TO_PROFILE:
          profile_dir = os.path.join(os.path.dirname(__file__), 'profiles')
          input_profile = os.path.join(profile_dir, "USWebUncoated.icc")
          output_profile = os.path.join(profile_dir, "sRGB_v4_ICC_preference.icc")
          return profileToProfile(img, input_profile, output_profile, outputMode='RGB')
      return img