VS Code shows a hint, when the name is not set. It looks like that this @startuml name Syntax is officially supported but not documented. Example and more informations can be found in the following issue of vscode repository.
@startuml System Context of Project Collector System
!include https://raw.githubusercontent.com/adrianvlupu/C4-PlantUML/latest/C4_Context.puml
Thank you for raising this issue, this is a duplicate of #24 .
But since you are now the second person to raise this, i will keep this open and extend the parser with support for this.
VS Code shows a hint, when the name is not set. It looks like that this
@startuml name
Syntax is officially supported but not documented. Example and more informations can be found in the following issue of vscode repository.