webcharts v1.10.0 makes the chart and controls objects more transparent from the perspective of the DOM by binding them to their associated DOM nodes, i.e. chart.wrap and controls.wrap. Charts and controls can now be accessed and destroyed from the DOM. Additionally the marks property of the chart object now exposes new mark-specific data, such as mark group IDs, mark configuration, a d3 selection the mark SVG container, and a d3 selection of the individual marks' grouping elements. Rather than selecting the SVG then selecting the desired marks the selection is already in place in the each item of the chart.marks array. A full list of resolved issues is available here.