<?xml version="1.0" encoding="UTF-8"?>
<svg viewBox="-1000 -1000 2000 2000" xmlns="http://www.w3.org/2000/svg">
<style>
circle {
fill: black;
stroke: black;
}
@media (prefers-color-scheme: dark) {
circle {
fill: white;
stroke: white;
}
}
</style>
<circle r="960" fill-opacity="0" stroke-width="80"/>
<circle r="675" stroke-opacity="0"/>
</svg>