This pie chart shows the distribution of total screen time across four app categories (Work, Gaming, Education, Social) using the Digital Usage dataset, with each slice sized proportionally and labeled with its percentage. D3’s `pie` layout and `arc` generator convert the aggregated `screen_time_hours` into SVG paths, while tooltips and hover highlighting are implemented via mouse events. A `scaleOrdinal` color scale differentiates categories, and a legend accompanies the chart. The visualization reveals a fairly even usage split, with Education holding a slightly smaller share than the other three categories.