{"version":"1.0","type":"rich","title":"task1","description":"This bar chart shows the population of 30 countries in 2020. Built with React and D3 v5, it uses `d3.scaleBand` and `d3.scaleLinear` to map country names and populations to SVG rectangles. Data is loaded from a CSV file via `d3.csv` and formatted using `d3.format`. Axes are custom-rendered, with hover tooltips displaying the formatted population values.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/5f527734f5ee42c99971c57406ccd948?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}