How does one define double-lines for edge and node shapes in graphviz dot?

Doubled shapes can be done by using [peripheries=2] on the node Doubled edges can be done by specifying more than one colour for the edge, separated by a colon. In this case use the same colour twice: [color=”black:black”] (or, to separate them slightly more, do [color=”black:invis:black”]) I got there eventually! Sorry for the “evolutionary” nature … Read more

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