Revision control
++ <?xml version="1.0" encoding="UTF-8"?>
++ <svg width="200" height="200" viewBox="0 0 20 20" version="1.1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
++ <defs>
++ <polygon id="path-1" points="0 0 20 0 20 10 0 20"></polygon>
++ </defs>
++ <g id="g1" stroke="none" stroke-width="1" fill="none" fill-rule="evenodd">
++ <g id="g2" transform="translate(-1000, -1000)">
++ <g id="g3" transform="translate(1000, 1000)">
++ <g id="g4" transform="translate(0, 0)">
++ <g id="g5" transform="translate(0, 0)">
++ <mask id="mask-2" fill="white">
++ <use xlink:href="#path-1"></use>
++ </mask>
++ <g id="Clip-2"></g>
++ <path d="M 2 2 l 16 0 l 0 16 l -16 0 z" id="Fill-1" fill="#CECECE" mask="url(#mask-2)"></path>
++ </g>
++ </g>
++ </g>
++ </g>
++ </g>
++ </svg>