web-server/data/release/styles/giant_polygon.sld

<?xml version="1.0" encoding="UTF-8"?>
<StyledLayerDescriptor version="1.0.0" xmlns="http://www.opengis.net/sld" xmlns:ogc="http://www.opengis.net/ogc"
  xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  xsi:schemaLocation="http://www.opengis.net/sld http://schemas.opengis.net/sld/1.0.0/StyledLayerDescriptor.xsd">
  <NamedLayer>
    <Name>area landmarks</Name>
    <UserStyle>
    <Title>Border-less gray fill</Title>
    <Abstract>Light gray polygon fill without a border</Abstract>
      <FeatureTypeStyle>
        <Rule>
          <PolygonSymbolizer>
            <Fill>
              <CssParameter name="fill">
                <ogc:Literal>#DDDDDD</ogc:Literal>
              </CssParameter>
              <CssParameter name="fill-opacity">
                <ogc:Literal>1.0</ogc:Literal>
              </CssParameter>
            </Fill>
          </PolygonSymbolizer>
        </Rule>
      </FeatureTypeStyle>
    </UserStyle>
  </NamedLayer>
</StyledLayerDescriptor>