Grouping messages should be on top level. - PlantUML Q&A
Choosing colors
PlantUML Language Reference Guide Plant UML en
PlantUML Diagrams | SAP Blogs
PlantUML で白黒のシーケンス図を描く - サポンテ 勉強ノート
Documentation tooling :: Michiel Kalkman — Software | Security | Product | Design
Some PlantUML links I needed for complex component diagram editing « The Wiert Corner – irregular stream of stuff
Gradient on alt boxes - PlantUML Q&A
All Skin Parameters — Ashley's PlantUML Doc 0.2.01 documentation
All Skin Parameters — Ashley's PlantUML Doc 0.2.01 documentation
Using PlantUML
All Skin Parameters — Ashley's PlantUML Doc 0.2.01 documentation
PlantUML Tips and Tricks | Codit
PlantUML - Sequence Diagram | Shioulo工作室
Change the background colour of a mindmap object by using labels - Stack Overflow
place message text right of actor in PlantUML sequence diagram - Stack Overflow
PlantUML layout and styles tutorial | AugmentedMind.de
PlantUML tips and tricks | Alex Sarafian
PlantUML tips and tricks | Alex Sarafian
PlantUML を便利に使うための3つの Tips - Qiita
Changing colors and fonts
PlantUMLの実践応用（シーケンス図） | tracpath:Works
