          argument_list.append({"opts": ('-s', '--sort-by'),
                                "action": Radio,
                                "type": str,
                                "choices": ("blur", "face", "face-cnn", "face-cnn-dissim",
                                            "face-yaw", "hist", "hist-dissim"),
                                "dest": 'sort_method',
                                "group": "sort settings",
                                "default": "face",
                                "help": "R|Sort by method. Choose how images are sorted. "
                                        "\nL|'blur': Sort faces by blurriness."
 
</s> remove                                       "\nL|'hist-dissim': Like 'hist' but sorts by "
                                      "dissimilarity."
 </s> add                                       "\nL|'hist-dissim': Like 'hist' but sorts by dissimilarity."
                                      "\nL|'color-gray': Sort images by the average intensity of "
                                      "the converted grayscale color channel."
                                      "\nL|'color-luma': Sort images by the average intensity of "
                                      "the converted Y color channel. Bright lighting and "
                                      "oversaturated images will be ranked first."
                                      "\nL|'color-green': Sort images by the average intensity of "
                                      "the converted Cg color channel. Green images will be "
                                      "ranked first and red images will be last."
                                      "\nL|'color-orange': Sort images by the average intensity "
                                      "of the converted Co color channel. Orange images will be "
                                      "ranked first and blue images will be last."
                                          "face-yaw", "hist", "hist-dissim", "color-gray",
                                          "color-luma", "color-green", "color-orange"),
          argument_list.append({"opts": ('-s', '--sort-by'),
                                "action": Radio,
                                "type": str,
                                "choices": ("blur", "face", "face-cnn", "face-cnn-dissim",
                                          "face-yaw", "hist", "hist-dissim", "color-gray",
                                          "color-luma", "color-green", "color-orange"),
                                "dest": 'sort_method',
                                "group": "sort settings",
                                "default": "face",
                                "help": "R|Sort by method. Choose how images are sorted. "
                                        "\nL|'blur': Sort faces by blurriness."
keep keep keep keep replace keep keep keep keep keep
 Color channel sorting (#905)

* Add Sort by Color Feature

Sort by
 - Grayscale
 - Luma
 - Green to Red
 - Orange to Blue 
tools/cli.py