API Reference > presentation-common > PresentationRules > RootCategoryIdentifier RootCategoryIdentifier Interface Identifier of the root category. For direct properties it's the default category. See DefaultPropertyCategoryOverride for overriding the default category. For related properties it's the category made up from the related ECClass defined by the first RelatedPropertiesSpecification with RelationshipMeaning.RelatedInstance. If there's no such specification, the default category is used. Properties Name Type Description type "Root" Type of the identifier Defined in presentation/common/src/presentation-common/rules/content/modifiers/PropertyCategorySpecification.ts Line 49 Last Updated: 11 June, 2024