I had a transplant 2 weeks ago. So far, so good. I was coloring my hair before the transplant. How long do I have to wait post-procedure before I can do it again?

Before my HT I had my hair colored every 6 weeks or so. After my HT (3 months ago) I have not done any coloring. Although nobody has advised me against coloring, I will wait another 3 months untill most hairs have come out.
My sidehair is almost white, but the donor area is 80% dark and 20 % white. After the HT the white hairs that where transplanted showed up before the dark hairs started comming out. Isnt't that funny !
But now the dark hairs have kicked in as well and give the HT zone a natural mixed look.