DOT strict digraph node [shape=box style=filled] node [fillcolor=palegreen] HERE NODE WHERE /\[\[S\d+\]\]/ node [fillcolor=lightblue] LINKS HERE -> NODE HERE NODE WHERE /^Subset/ node [fillcolor=bisque] LINKS HERE -> NODE
DOT strict digraph node [shape=box style=filled] node [fillcolor=palegreen] HERE NODE WHERE /\[\[S\d+\]\]/ node [fillcolor=lightblue] LINKS HERE -> NODE HERE NODE WHERE /^Subset/ node [fillcolor=bisque] LINKS HERE -> NODE