svg = {
const r = 50, m = 2, size = 2 * (r + 2*m);
const svg = d3.select(DOM.svg(size, size));
svg.append('circle')
.attr('r', r)
.attr('cx', r + m)
.attr('cy', r + m)
.style('stroke', 'black')
.style('stroke-width', `${m}px`)
.style('fill', 'red')
.append('title')
.text('This is our circle :)');
return svg;
}