{"version":"1.0","type":"rich","title":"Refactored Area Chart (don activity)","description":"This area chart displays monthly blood donation activity, comparing total donations against the portion attributed to COVID-19. The visualization includes a legend that uses a striped pattern to distinguish the COVID-19 subset. Users can toggle between three menu options—total, COVID-19, and other purposes—to switch which data series the chart highlights, with values labeled directly above the area path. Built with React and D3 v6, the chart uses `scaleTime` and `scaleLinear` for axes, `area` generators for the filled regions, and `csv` to load data from a gist.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/21bdbb00e0974c359752ce23cb241653?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}