Personally, I agreed with you that the different of "color" should not be in a way for enjoy Form D of this shipment. Since our broker insist after discussed with the customs authority, we have to follow their advise.
If KMI confirms that it can be used over here without any problem, we will try using it. You may send this Form D to us.
On the other hands, if the given Form did not work due to their consideration on Invoice and Form D (should be matched), we are going to claim the import duty to you