The chart displays global coronavirus deaths over time, with each country plotted as a separate line on a logarithmic scale. A Voronoi overlay, generated using `d3.Delaunay`, divides the chart into cells that can be used to detect mouse proximity to specific lines, though the hover handler is only stubbed with a console log. The visualization is built with React and D3 v5, rendering SVG elements via custom `XAxis`, `YAxis`, and `LineChart` components. Data comes from the Johns Hopkins Coronavirus GitHub dataset.