{"version":"1.0","type":"rich","title":"sparkline","description":"A small SVG sparkline plots a time series of 25 daily values from data.csv, using a smooth Catmull-Rom curve and a single highlighted circle at the first data point. The chart renders a 200x100 pixel graphic with light gray lines and darker point markers, scaled by d3.scaleTime and d3.scaleLinear. D3 v4 parses dates with d3.timeParse and draws the path via d3.line with the d3.curveCatmullRom interpolation. The minimal design focuses on trend shape rather than axes or labels.","provider_name":"VizHub AI Studio","provider_url":"https://next.vizhub.com","html":"<iframe src=\"https://next.vizhub.com/viz/gist-a98588638aac07b2f93fb9f052fe52f2?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"1\"></iframe>","width":960,"height":500,"cache_age":3600}