0" width="100%" height="100%">
    <feDiffuseLighting in="SourceGraphic" lighting-color="LinkText">
      <fePointLight x="250" y="50" z="10"/>
    </feDiffuseLighting>
  </filter>
  <rect x="200" y="0" width="100" height="100" style="filter: url(#lighting);"/>

  <filter id="flood" x="0" y="0" width="100%" height="100%">
    <feFlood flood-color="GrayText"/>
  </filter>
  <rect x="400" y="0" width="100" height="100" style="filter: url(#flood);"/>
</svg>
