<svg xmlns:xlink="http://www.w3.org/1999/xlink" width="200px" height="200px" xmlns="http://www.w3.org/2000/svg">
<defs>
<filter x="0" y="0" width="100%" height="100%" id="turb">
<feTurbulence baseFrequency=".01" numOctaves="2" seed="1" type="turbulence"/>
</filter>
</defs>
<rect x="0" y="0" width="200" height="200" filter="url(#turb)"/>
</svg>