Since Scarlet and Gaia are best friends they both have secret looks with Gaia looking darker due to her being part thrax, Rasputin, and being the goddess of the universe, Scarlet Fever has lighter skin and darker kind of hair with her chain aka hair tie show the DNA of the people she infected like her best friend Thrax, she also had 4 more, 2 on her wrists and two on her thighs and she has scars due to her fire accident which give the humans the " rash ", and the birthmark on her eyes which are also part of her burns.