A lot of these can be found in the roblox game warrior cats ultimate edition if you want an idea of what they look like.
You can choose multiple markings so long as they don't contrast another.
(Choose a number from 1-20)
1. Cap mask
2. Face mask
3. Point mask
4. Half mask
5. Brindle
6. Pointed nose blaze
7. Square nose blaze
8. Eye markings
9. Freckles
10. Whisker pads
11. Under eye markings
12. Face stripes
13. Head stripe
14. Muzzle pads
15. Cheek markings
16. Caped mask
17. Extended nose bridge
18. Section tears
19. Eye spot
20. Head spot