app/assets/images/flags/1x1/co.svg
<svg xmlns="http://www.w3.org/2000/svg" id="flag-icon-css-co" viewBox="0 0 512 512">
<g fill-rule="evenodd" stroke-width="1pt">
<path fill="#ffe800" d="M0 0h512v512H0z"/>
<path fill="#00148e" d="M0 256h512v256H0z"/>
<path fill="#da0010" d="M0 384h512v128H0z"/>
</g>
</svg>