@startuml

state solid {
  state solid.red as "red" : entry / setColorRed
  state solid.yellow as "yellow" : entry / setColorYellow
  state solid.green as "green" : entry / setColorGreen

  [*] -> solid.red
  solid.red -> solid.yellow : NEXT
  solid.yellow -> solid.green : NEXT
  solid.green -> solid.red : NEXT
}

state blinking {
  state blinking.red as "red" : entry / setColorRed
  state blinking.yellow as "yellow" : entry / setColorYellow
}

blinking : invoke / blinkerRelay

[*] -> solid
blinking -> solid : NEXT
solid --> blinking.red : FAIL
solid --> blinking.yellow : CAUTION
blinking.red -> blinking.yellow : CAUTION
blinking.yellow -> blinking.red : FAIL

@enduml