Sorry for the disfunctional association, but that´s like buying art that goes well with the colors of your curtains and sofas... If the original one, was PH, let it will be... And wait for a gold one... I´m not saying that if it will Hermès changing it will not be a real bag, but will not have the same "soul" as it was carefully made for the first time, it´s also like wearing color contact lenses... It´s like new rich women who go crazy with plastic surgery and change their original figure, instead of taking care and make it look better! You bought a PH, she will be PH for the rest of her life, because born like that, don´t get offended , please. this is just my point of view.
One day people will start asking for changing the leather colors also...