@startuml skinparam rectangle<<RedContainer>> { StereotypeFontColor red FontColor red BackgroundColor lightred BorderColor darkred RoundCorner 0 DiagonalCorner 18 } skinparam rectangle { StereotypeFontColor blue FontColor blue } skinparam rectangle<<ItalicContainer>> { FontStyle italic FontSize 8 } skinparam rectangle<<GreenContainer>> { StereotypeFontColor green FontColor green BackgroundColor lightgreen BorderColor darkgreen RoundCorner 15 DiagonalCorner 0 } title produces a red rectangle rectangle "C1" <<RedContainer>><<GreenContainer>> as C1 @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