| <!-- | |
| Any copyright is dedicated to the Public Domain. | |
| http://creativecommons.org/publicdomain/zero/1.0/ | |
| --> | |
| <svg xmlns="http://www.w3.org/2000/svg"> | |
| <title>SourceAlpha pseudo input reference</title> | |
| <defs> | |
| <filter id="blur"> | |
| <feGaussianBlur in="SourceGraphic" stdDeviation="2"/> | |
| </filter> | |
| </defs> | |
| <g fill-opacity="0.6" stroke="black" fill="black" stroke-width="3" filter="url(#blur)"> | |
| <circle cx="98" cy="85" r="25"/> | |
| <circle cx="80" cy="110" r="25"/> | |
| <circle cx="116" cy="110" r="25"/> | |
| </g> | |
| </svg> |
