<feFlood x="40" y="40" width="60" height="60" flood-color="rgb(0, 128, 0)" />
<feComposite in="SourceGraphic" operator="arithmetic" k1="0.75" k4="0.25" x="0" y="0" width="100" height="100"/>
</filter>
<feFlood x="40" y="40" width="60" height="60" flood-color="rgb(0, 128, 0)" />
<feComposite in="SourceGraphic" operator="arithmetic" k1="0.75" k4="0.25" x="0" y="0" width="100" height="100"/>
</filter>