classic munching squares graphics hack. See the "Munch" screen saver
for the original.
-http://en.wikipedia.org/wiki/HAKMEM
-http://en.wikipedia.org/wiki/Munching_square
+https://en.wikipedia.org/wiki/HAKMEM
+https://en.wikipedia.org/wiki/Munching_square
Written by Steven Hazel; 2004.
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