<xs:complexType name="AppearanceType">
	<xs:annotation>
		<xs:documentation> Named container for all surface data (texture/material). All appearances of the same name ("theme")
			within a CityGML file are considered a group. </xs:documentation>
	</xs:annotation>
	<xs:complexContent>
		<xs:extension base="gml:AbstractFeatureType">
			<xs:sequence>
				<xs:element name="theme" type="xs:string" minOccurs="0"/>
				<xs:element name="surfaceDataMember" type="SurfaceDataPropertyType" minOccurs="0" maxOccurs="unbounded"/>
				<xs:element ref="_GenericApplicationPropertyOfAppearance" minOccurs="0" maxOccurs="unbounded"/>
			</xs:sequence>
		</xs:extension>
	</xs:complexContent>
</xs:complexType>