| <svg width="500px" height="610px" xmlns="http://www.w3.org/2000/svg"> |
| <defs> |
| <filter id="filter" filterUnits="objectBoundingBox"> |
| <feFlood/> |
| <feDiffuseLighting lighting-color="rgb(0, 255, 0)" x="-120" y="85"> |
| <fePointLight x="250" y="200" z="50"/> |
| </feDiffuseLighting> |
| <feComponentTransfer> |
| <feFuncG type="discrete" tableValues="0 1"/> |
| </feComponentTransfer> |
| </filter> |
| </defs> |
| <rect x="110" y="150" width="400" height="320" fill="none" filter="url(#filter)"/> |
| <!-- Mask off slight differences in point light radius --> |
| <circle cx="250" cy="200" r="85" fill="none" stroke="gray" stroke-width="20"/> |
| </svg> |
