<svg xmlns="http://www.w3.org/2000/svg" width="640" height="480"><defs><clipPath id="a"><path fill="gray" d="M67.6-154h666v666h-666z"/></clipPath></defs><g clip-path="url(#a)" transform="matrix(.961 0 0 .7207 -65 111)"><g fill-rule="evenodd" stroke-width="1pt"><path fill="#319400" d="M0-154h333v666H0z"/><path fill="#ffd600" d="M333-154h666v333H333z"/><path fill="#de2110" d="M333 179h666v333H333z"/></g></g></svg>