Aureole colour

1. Absent aureole (white, cream)
2. Brown or gray
3. chestnut brown
4. red
5. green
6. Blue to black
7. Blue with black spots or speckles
8. Stained (uniform distribution of spots)
9. Variegated (dark brown pigment typically absent in the hilum)
10. Variegated with spots and
11. others