digraph {
  API -> Database [color=green];
  API -> Database [color=orange];
  Database -> API [color=red];
  API -> Webinterface [color=red];
  Producer -> API [color=orange];
  Producer -> API [color=green];
  Producer -> "Queue Service" [color=orange];
  "Queue Service" -> Worker [color=orange];
  Worker -> "Image File" [color=blue];
  Worker -> "Queue Service" [color=green];
  "Queue Service" -> Producer [color=green];
  "Image File" -> "Storage Backend" [color=blue];
  "Storage Backend" -> Webinterface [color=red];
}