UPPER HALF BLOCK
LOWER ONE EIGHTH BLOCK
LOWER THREE EIGHTHS BLOCK
LOWER FIVE EIGHTHS BLOCK
LIGHT SHADE
MEDIUM SHADE
QUADRANT LOWER LEFT
QUADRANT UPPER LEFT AND LOWER LEFT AND LOWER RIGHT
QUADRANT UPPER LEFT AND UPPER RIGHT AND LOWER LEFT
QUADRANT UPPER RIGHT
QUADRANT UPPER RIGHT AND LOWER LEFT AND LOWER RIGHT