edge [fontname = "Sans"];
  node [shape=rectangle, fixedsize=true, width=2.5, height=0.5];
  node [style="dashed,filled", fillcolor=grey]
  rankdir=LR

  compileTestVariantSwift -> linkTestVariant -> installTestVariant -> xcTestVariant [dir=back, style=dashed]
  compileTestVariantSwift[label=<compile<i>Variant</i>Swift>]
  linkTestVariant[label=<link<i>Variant</i>>]
  installTestVariant[label=<installTest<i>Variant</i>>]