Untitled undefined type in Mermaid Config Schema

https://mermaid.js.org/schemas/config.schema.json#/$defs/C4DiagramConfig/properties/external_containerFontSize

这设置了图表的外部容器形状的字体大小

Abstract	Extensible	Status	Identifiable	Custom Properties	Additional Properties	Access Restrictions	Defined In
Can be instantiated	No	Unknown status	Unknown identifiability	Forbidden	Allowed	none	config.schema.json*

external_containerFontSize Type

any of the following: string or number (Details)

external_containerFontSize Default Value

The default value is:

14