{"version":"1.0","type":"rich","title":"Blank Canvas","description":"A blank, fixed, full-viewport SVG canvas is drawn using D3 (d3.v5). The visualization only renders a single rounded rectangle covering the entire browser window, with no underlying data or marks beyond this base shape. The code uses D3’s `select` and `attr` methods to size the SVG to the viewport’s clientWidth and clientHeight, applying rounded corners via `rx`. It relies on HTML `body` CSS for positioning and uses a simple SVG `rect` element for output.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/d20b882196d84d919d3834055940f263?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}