UnityEditor.AudioMixerColorCodes.ItemCallback C# (CSharp) Method

        private static void ItemCallback(object data)
        {
            ItemData data2 = (ItemData) data;
            Undo.RecordObjects(data2.groups, "Change Group(s) Color");
            foreach (AudioMixerGroupController controller in data2.groups)
            {
                controller.userColorIndex = data2.index;
            }
        }