Is there a way using the Themes json file to dynamically set the box images for a protected datawindow column checkbox style control? Looks like it can be done for a Checkbox control by setting:

       "disabled-state":
             {
                "background-color":"#F7F7F7",
                "text-font":{"color":"#B8C2CC"},
                "box-images":
                {
                    "unchecked":{"file":"checkbox-box-disabled-unchecked.bmp"},
                    "checked":{"file":"checkbox-box-disabled-checked.bmp"},
                    "indeterminate":{"file":"checkbox-box-disabled-indeterminate.bmp"}
                }
             }

But enabled is not a property of a datawindow column. I tried protecting the column, then adding this to the theme file (doesn't work):

         "dwo-column":
        {
            "drawing":true,
            "border":0,
            "border-color":"#d0d3d9",
            "background-color":"#FFFFFF",
            "text-font":{"color":"#3C465A"},
            "checkbox-type":
            {
              "drawing":true,

                "normal-state":
                {
                    "box-images":
                    {
                        "unchecked":{"file":"checkbox-box-normal-unchecked.bmp"},
                        "checked":{"file":"checkbox-box-normal-checked.bmp"},
                        "indeterminate":{"file":"checkbox-box-normal-indeterminate.bmp"}
                    }
                },

               "protected-state":
               {
                    "box-images":
                    {
                        "unchecked": { "file": "checkbox-box-disabled-unchecked.bmp" },
                        "checked": { "file": "checkbox-box-disabled-checked.bmp" },
                        "indeterminate": { "file": "checkbox-box-disabled-indeterminate.bmp" }
                     }
               }

But i'm guessing "protected-state" is not valid.