in src/visual.ts [54:66]
constructor(options: VisualConstructorOptions) {
this.svg = d3.select(options.element)
.append('svg')
.classed('circleCard', true);
this.container = this.svg.append("g")
.classed('container', true);
this.circle = this.container.append("circle")
.classed('circle', true);
this.textValue = this.container.append("text")
.classed("textValue", true);
this.textLabel = this.container.append("text")
.classed("textLabel", true);
}