1 <svg width="40" height="40" viewBox="0 0 40 40" xmlns="http://www.w3.org/2000/svg"> 2 <!-- Hollow ring: circle.svg's "off" partner (a toggle or radio mark that is not set, 3 a disconnected status). Stroke 5 on r=12.5, so the outer edge lands at 4 circle.svg's r=15 and the two read as one shape, filled or not. --> 5 <circle cx="20" cy="20" r="12.5" fill="none" stroke="#ffffff" stroke-width="5" /> 6 </svg>