digraph G {
  subgraph cluster0 {
    fillcolor="blue:red"
	style="filled,rounded"
    0
  }
  subgraph cluster1 {
    peripheries=0
    fillcolor="blue:red"
	style=filled
    1
  }
  subgraph cluster2 {
    fillcolor="blue"
	style=filled
    2
  }
  subgraph cluster3 {
    peripheries=0
    fillcolor="red"
	style="filled,rounded"
    3
  }
  subgraph cluster4 {
    peripheries=0
    bgcolor="red:blue"
    4
  }
  subgraph cluster5 {
    bgcolor="red:blue"
    5
  }
  0 -> 1 -> 2 -> 3 -> 4
}
