D[color]
= Diagonal \
D2[color]
= Diagonal /
MH[color]
= Middle Horizontal ---
MV[color]
= Middle Vertical |
T[color]
= Top
L[color]
= Left
R[color]
= Right
B[color]
= Bottom
C[empty]
= Empty.MH[Blue]D[Red]T[Blue]
. Use C[empty]
for an empty cell.Blue
= mountain, Red
= valley (case‑insensitive).