Should using the VendorOption "graphic-margin" work with <Mark> element?

GeoServer GeoServer User
1

Non-Working SLD Snipplet with <Mark> element:

          <se:PolygonSymbolizer>
            <se:Fill>
              <se:GraphicFill>
                <se:Graphic>
                  <se:Mark>
                    <se:WellKnownName>square</se:WellKnownName>
                    <se:Fill>
                      <se:SvgParameter name="fill">#7aeeee</se:SvgParameter>
                    </se:Fill>
                    <se:Stroke>
                      <se:SvgParameter name="stroke">#000000</se:SvgParameter>
                      <se:SvgParameter name="stroke-width">0.5</se:SvgParameter>
                    </se:Stroke>
                  </se:Mark>
                  <se:Size>5</se:Size>
                </se:Graphic>
              </se:GraphicFill>
            </se:Fill>
            <se:VendorOption name="graphic-margin">10</se:VendorOption>
          </se:PolygonSymbolizer>

This works (is similar to geoserver doc - with <ExternalGraphic> element):

          <se:PolygonSymbolizer>
            <se:Fill>
              <se:GraphicFill>
                <se:Graphic>
                  <se:ExternalGraphic>
                    <se:OnlineResource xlink:type="simple" xlink:href="red.png"></se:OnlineResource>
                    <se:Format>image/png</se:Format>
                  </se:ExternalGraphic>
                  <se:Size>5</se:Size>
                </se:Graphic>
              </se:GraphicFill>
            </se:Fill>
            <se:VendorOption name="graphic-margin">10</se:VendorOption>
          </se:PolygonSymbolizer>