This area chart shows average daily screen time in hours across different age groups, based on a CSV file loaded from a GitHub gist. The code uses D3 v7 to build the visualization, parsing the data with `d3.csv` and rendering the area path with `d3.area`. A point scale maps age categories horizontally, while a linear scale handles the vertical time axis, with axes generated using `d3.axisBottom` and `d3.axisLeft`. The SVG output includes labeled axes and a filled purple area with a dark stroke.