UPPER HALF BLOCK
LOWER FIVE EIGHTHS BLOCK
LOWER SEVEN EIGHTHS BLOCK
LEFT THREE QUARTERS BLOCK
LEFT FIVE EIGHTHS BLOCK
LIGHT SHADE
DARK SHADE
QUADRANT UPPER LEFT AND LOWER LEFT AND LOWER RIGHT
QUADRANT UPPER LEFT AND LOWER RIGHT
QUADRANT UPPER LEFT AND UPPER RIGHT AND LOWER RIGHT
QUADRANT UPPER RIGHT AND LOWER LEFT