digraph { node [shape=box, style=rounded]; rankdir=TB; subgraph clusterMain { "jocl » linux-arm32" [label= tooltip="jocl » linux-arm32" href="https://jogamp.org/chuck/job/jocl/label=linux-arm32/"]; "jocl-demos" [label= tooltip="jocl-demos" href="https://jogamp.org/chuck/job/jocl-demos/"]; color=invis;} subgraph clusterStandalone { color=invis;} "jocl » linux-arm32" -> "jocl-demos" [ color=black ] ; }