in src/Sunburst.ts [160:183]
        main: createClassAndSelector("sunburst"),
        mainInteractive: createClassAndSelector("sunburst--interactive"),
        slice: createClassAndSelector("sunburst__slice"),
        sliceSelected: createClassAndSelector("sunburst__slice--selected"),
        sliceHidden: createClassAndSelector("sunburst__slice--hidden"),
        label: createClassAndSelector("sunburst__label"),
        labelVisible: createClassAndSelector("sunburst__label--visible"),
        categoryLabel: createClassAndSelector("sunburst__category-label"),
        percentageLabel: createClassAndSelector("sunburst__percentage-label"),
        sliceLabel: createClassAndSelector("sunburst__slice-label")
    };
    private colorPalette: IColorPalette;
    private colorHelper: ColorHelper;
    private interactivityService: IInteractivityService<any>;
    private behavior: IInteractiveBehavior = new Behavior();
    private tooltipService: ITooltipServiceWrapper;
    private viewport: IViewport;
    private legend: ILegend;
    private legendData: LegendData;
    constructor(options: VisualConstructorOptions) {