<svg width="16" height="16" xmlns="http://www.w3.org/2000/svg">
<style>
circle { stroke: #000000; fill: none; stroke-width: 2 }
@media (prefers-color-scheme: dark) {
circle { stroke: #ffffff; }
}
</style>
<circle cx="8" cy="8" r="5" />
</svg>
