Kraftmaid Venecia-filler Pieces

We are currently renovating our kitchen with Kraftmaid Venecia cabinets. The filler pieces and side refrigerator panel are the finish of the interior of the cabinets, meaning they are slightly off from the outside color of the cabinetry. Our salesperson at Loew’s is comping us a cabinet door to cut and use as the small filler pieces (which our contractor thinks is crazy). But this won’t work for the large refrigerator panel. The Loew’s guy says this is just how the Venecia cabinet filler/panels are, our contractor thinks this can’t be true. Any input would be much appreciated as we are at our wits end. Thanks in advance.