Modern Vanille

Colour Group: Bonbon, Brun Base, Cream, Modern Bonbon, Modern Peach, Noir Base, Peach, and Rouge Base
Rarity: Special
Importable?: Yes - Special tier

Regal

Colour Group: Crayon and Noir Base
Rarity: Special
Importable?: Yes - Admin customs only

Velvet

Colour Group: Crayon and Noir Base
Rarity: Special
Importable?: Yes - Admin customs only

(Pseudo-)Double Cream Fange

Colour Group: Brun Base, Cream, Fange, Noir Base, Pearl, and Rouge Base
Rarity: Unnatural
Importable?: Yes

Noir Fange

Colour Group: Fange and Noir Base
Rarity: Unnatural
Importable?: Yes

Smoky Soir

Colour Group: Cream, Noir Base, and Soir
Rarity: Unnatural
Importable?: Yes

Noir Soir

Colour Group: Noir Base and Soir
Rarity: Unnatural
Importable?: Yes

Argent

Colour Group: Brun Base, Cream, Noir Base, Pearl, Rouge Base, and Rouille
Rarity: Unnatural
Importable?: Yes

Plomb

Colour Group: Noir Base, Pearl, and Rouille
Rarity: Unnatural
Importable?: Yes

Étain

Colour Group: Cream, Noir Base, and Rouille
Rarity: Unnatural
Importable?: Yes