@startuml skinparam backgroundColor transparent skinparam shadowing false skinparam DefaultFontName "Inter", "system-ui", sans-serif skinparam DefaultFontSize 12 skinparam Padding 8 skinparam RoundCorner 12 skinparam MaxMessageSize 150 skinparam wrapWidth 200 skinparam nodesep 50 skinparam ranksep 50 skinparam state { BackgroundColor<<Reachable>> LightGreen BackgroundColor<<Unreachable>> Tomato } state "Root (Global/Stack)" as root state "Object A" as A <<Reachable>> state "Object B" as B <<Reachable>> state "Object C" as C <<Unreachable>> state "Object D" as D <<Unreachable>> root --> A A --> B C --> D D --> C note right of C : Island of Isolation note bottom of B : Safe from GC @enduml Submit amiga aws-orange black-knight bluegray blueprint cerulean-outline cerulean crt-amber crt-green cyborg-outline cyborg hacker lightgray mars materia-outline materia metal mimeograph minty plain reddress-darkblue reddress-darkgreen reddress-darkorange reddress-darkred reddress-lightblue reddress-lightgreen reddress-lightorange reddress-lightred sandstone silver sketchy-outline sketchy spacelab spacelab-white superhero-outline superhero toy united vibrant       🎉 Discover the future PlantUML Web Editor! 🚀  PNG  SVG  ASCII Art