Improving burn and skin graft donor area appearance?

My arm was severely burnt with 1st, 2nd and 3rd degree burns many years ago which required skin grafts from my leg. I'd like to improve the appearance of both areas without using any sort of subdermal balloon type device. The skin graft donor site is substantially lighter than my normal skin color since I guess the skin pigment was removed with the grafts. Any options? Thanks.

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