The arrangement vertices:
(4 1) - RED.
(7 6) - RED.
(1 6) - RED.
(2.8 3) - WHITE.
(1 3) - RED.
(5.2 3) - WHITE.
(7 3) - RED.
(1.9 4.5) - WHITE.
(2.8 6) - WHITE.
(4 8) - RED.
(5.2 6) - WHITE.
(6.1 4.5) - WHITE.
(4 4.5) - BLUE.
The arrangement outer-boundary sizes: 0 3 6 3 3 3 3 3
