{"version":"1.0","type":"rich","title":"Black Canvas","description":"Using D3 v5, this example fills the browser viewport with a single black SVG rectangle whose corners are rounded by an `rx` of 40. The rectangle’s dimensions are set from `document.body.clientWidth` and `clientHeight` via `select(\"svg\").attr(\"width\")` and `.attr(\"height\")`. The visualization demonstrates a minimal, full-screen canvas with no interactive elements, relying solely on SVG attributes for sizing.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/2e938bc57d654c338ccecacbf33f4b22?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}