{"version":"1.0","type":"rich","title":"Fork of Activity 7.1 Question 2","description":"This example shows an area chart comparing pollutant levels across three Texas locations—Denton, Frisco, and Lewisville—over time. It loads JSON data from a GitHub Gist and uses D3 v7’s `d3.scalePoint` and `d3.scaleLinear` to map time and values, with `d3.area` generating the layered paths. Each location receives a semi-transparent color, and the chart includes rotated X-axis labels, a Y-axis, and a color-coded legend. The SVG is rendered directly into the DOM via `d3.select().append()`.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/89b2d89d2cea4bc9b32faf78b6c7b122?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}