| <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1000 500"> | |
| <filter id="saturate-back"> | |
| <feColorMatrix in="SourceGraphic" type="saturate" values="1"/> | |
| </filter> | |
| <g filter="url(#saturate-back)"> | |
| <rect x="-500" y="0" width="950" height="100%" fill="green"/> | |
| <rect x="550" y="0" width="950" height="100%" fill="green"/> | |
| </g> | |
| <rect x="450" y="0" width="100" height="100%" fill="none" stroke="white" stroke-width="10"/> | |
| </svg> |
