shape-rendering

<xs:attribute name="shape-rendering">
  <xs:simpleType>
    <xs:restriction base="xs:token">
      <xs:enumeration value="auto"/>
      <xs:enumeration value="optimizeSpeed"/>
      <xs:enumeration value="crispEdges"/>
      <xs:enumeration value="geometricPrecision"/>
      <xs:enumeration value="inherit"/>
    </xs:restriction>
  </xs:simpleType>
</xs:attribute>