Found her :)
AUGUST 2ND, 2019

-Base-
Cocoa (Greige Skin)
-Genetics-
Black Medium Countershaded Rare
-Eyes-
Hetero Brown & Blue
-Mane-
Tsavo Cocoa
-Slot 1-
Vitiligo 1 (100%)
-Slot 2-
Vitiligo 5 (100%)
-Slot 3-
Vitiligo 6 (100%)
-Slot 4-
Vitiligo 3 (100%)
-Slot 5-
Cream Soft Unders (100%)
-Slot 6-
Shell Lace (100%)
-Slot 7-
Dim Black (80%)
-Slot 8-
Dark Brown Crackle (30%)
-Slot 9-
Shell Rims (100%)
-Slot 10-
White Underfelt (100%)
-Mutation-
None

There should also be another birthday RL coming up, so I'll watch for her while I work on this...
NOTE:
Breed to only Black Countershaded Meds for base / Stud to others w brown or blue eyes