An: the color 'orange' for the HPFC.
When Tonks was younger she had always wanted to dye her hair orange. She had a friend, Bradley, who was always made fun of for being a 'ginger', and she wanted to be one too, to stick up for him. Now, by, 'younger,' I mean she was around 10 years old: a smart, strong-willed, athletic (although clumsy,) girl of 10. Tonks, though, had a dilemma: her mother WOULD NOT, allow her to dye her hair orange. Now, that was when Tonks finally came to the realization of her ability to become a Metamorphagus. Some children developed late, and she was one of them...Her parents were shocked. They assumed she would never have those powers, blooming so late, but lo-and-behold, Tonks found them...and the day after she went to school with orange hair.
A\n: Teehee, young, strong-willed Tonks. Love it!