{"version":"1.0","type":"rich","title":"fresh block","description":"A stacked bar chart displays yearly transaction counts for US states from 2010–2016, with each bar segmented by year and a legend identifying the color-coded categories. The visualization uses D3 v4’s `d3.stack()` to compute the layers, `d3.scaleBand()` for the state axis, `d3.scaleLinear()` for the count axis, and `d3.scaleOrdinal()` with `d3.schemeCategory20c` for colors. Data is loaded from a CSV file via `d3.csv`, and the chart renders as SVG with axes generated by `d3.axisBottom` and `d3.axisLeft`.","provider_name":"VizHub AI Studio","provider_url":"https://next.vizhub.com","html":"<iframe src=\"https://next.vizhub.com/viz/gist-b811abec3b3f5ce2dda333a98653d439?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"1\"></iframe>","width":960,"height":500,"cache_age":3600}