{"version":"1.0","type":"rich","title":"Fork of Custom Color TreeMap","description":"This interactive treemap visualizes steel scrap exports from the United States to various partner countries, with each colored rectangle representing a country and its total export value. The visualization uses d3.hierarchy and d3.treemap to compute the layout, with a sequential color scale interpolating from lightblue to darkblue based on value magnitude. Users can click any country cell to drill down into its commodity-level breakdown, while a reset button restores the original country-level view. The code employs D3 v7's data joins and transition methods to smoothly animate between hierarchy levels, with SVG rendering for all elements.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/203fe25899e3476db39f965a8557fbe1?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}