This fork of the interactive line chart from the visualization gallery uses a Voronoi overlay to make hovering over the chart more intuitive. The chart displays cumulative COVID-19 deaths over time for each country, using a logarithmic y-axis and data from the Johns Hopkins Coronavirus Dataset. Upon hovering, an invisible Voronoi cell highlights the nearest line, making it active, and a tooltip shows the country name, death count, and date. The visualization uses React, D3 v5, and SVG, with the Delaunay triangulation and Voronoi diagram built using `d3.Delaunay`.