StereoTypeFontSize = 0 crashes PlantUML

[jeanmarc]

When using the latest PlantUML and defining a Group or Grouping, my PlantUML crashes (using 1.2025.4). Changing the StereotypeFontSize to 1 (from 0) fixes the crash. The same thing happens when including a copy of the Archimate.puml (v 2.0.0beta1)

This crashes:

@startuml
!include <archimate/Archimate>
Grouping("Test", a)
@enduml

When I modify the Archimate.puml to change the StereotypeFontSize (lines 51, 58, and 64) from 0 to 1, the diagram works:

@startuml
!include Archimate.puml
Grouping("Grouping", a)
Group("Group", b)
@enduml

By the way, IIUC the skinparam is being deprecated, and it is advised to move to CSS like <style> settings. The corresponding way to set the font on a stereotype is shown in this example:

@startuml
!include <archimate/Archimate>

hide stereotype
<style>
    rectangle {
        .dotted {
            linecolor #black
            linestyle 2
            backgroundcolor white
        }
    }
</style>

rectangle Composite <<dotted>> [
{{
    !include Archimate.puml
    <style>
        folder {
            .gralt{
                linestyle 4
                stereotype {
                    FontSize 1
                    FontColor transparent
                }
            }
        }
    </style>


    left to right direction
    title Composite Elements
    Other_Location(l1, "Location")
    Folder "Alternative Grouping" <<gralt>> as g3
    Group(g1, "Group")
    Grouping(g2, "Grouping")
}}
]
@enduml

[jeanmarc]

This is fixed in #54