{
        
    "skin_tone" : {

        "name": "Skin Tone",
        "group_name" : "skin_tone",
        "group_parts" : [
            "skin_head",
            "skin_neck",
            "skin_arm_right",
            "skin_arm_left",
            "skin_hand_right",
            "skin_hand_left",
            "skin_leg_right",
            "skin_leg_left"
        ]
    }

}
Add part menu groups json files
Add part menu groups json files

This enables the grouping of character part names (and assets)
that should be categorized together. For e.g., the colors of the
skin_head, skin_neck, skin_arm_left, skin_arm_right, etc. should
really be the same color (usually), and this schema is meant to
help capture this abstract concept for later processing.
