default_point.sld

<StyledLayerDescriptor version="1.0.0" xmlns:xsi="http://www.opengis.net/sld http://schemas.opengis.net/sld/1.0.0/StyledLayerDescriptor.xsd">
  <NamedLayer>
    <Name>foo</Name>
    <UserStyle>
      <FeatureTypeStyle>
    <Rule>
      <Name>Class given in default</Name>
      <PointSymbolizer>
        <Graphic>
          <Size>6.0</Size>
          <Mark>
        <WellKnownName>circle</WellKnownName>
        <Fill>
          <CssParameter name="fill">#6D35AD</CssParameter>
        </Fill>
          </Mark>
        </Graphic>
      </PointSymbolizer>
    </Rule>
      </FeatureTypeStyle>
    </UserStyle>
  </NamedLayer>
</StyledLayerDescriptor>