>>921367
>Incidentally, Bunny Link shares his palette with regular Link
No he doesn't. Normal Link has 1 shade of pink, the bunny version has 2, and neither of them are the same shade as normal Link's hair. It just looks the same if you take a casual glance, "oh they both have pink."
I think in the end it was simply a narrative tool, the pink head of hair foreshadowing his true nature and having that connection between his bunny form and real form.