{"version":"1.0","type":"rich","title":"Blank Canvas","description":"A blank, rounded rectangle fills the entire SVG viewport. The example uses d3.select to access the SVG element, reads its width and height attributes, and appends a single SVG `rect` with those dimensions and a corner radius. No data is loaded or bound; the visualization is purely a static geometric shape rendered with D3 v5 and SVG.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/f5c1cbb56d844a69a52dfc19f1eb57ee?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}