5.28 http://schemas.microsoft.com/office/drawing/2016/ink Schema

 <xsd:schema elementFormDefault="qualified" targetNamespace="http://schemas.microsoft.com/office/drawing/2016/ink" xmlns="http://schemas.microsoft.com/office/drawing/2016/ink" xmlns:xsd="http://www.w3.org/2001/XMLSchema">
   <xsd:simpleType name="ST_ExtendedBrushPropertyName">
     <xsd:restriction base="xsd:string">
       <xsd:enumeration value="inkEffects"/>
       <xsd:enumeration value="anchorX"/>
       <xsd:enumeration value="anchorY"/>
       <xsd:enumeration value="scaleFactor"/>
     </xsd:restriction>
   </xsd:simpleType>
   <xsd:simpleType name="ST_InkEffectsType">
     <xsd:restriction base="xsd:string">
       <xsd:enumeration value="none"/>
       <xsd:enumeration value="pencil"/>
       <xsd:enumeration value="rainbow"/>
       <xsd:enumeration value="galaxy"/>
       <xsd:enumeration value="gold"/>
       <xsd:enumeration value="silver"/>
       <xsd:enumeration value="lava"/>
       <xsd:enumeration value="ocean"/>
       <xsd:enumeration value="rosegold"/>
       <xsd:enumeration value="bronze"/>
     </xsd:restriction>
   </xsd:simpleType>
 </xsd:schema>