{"version":"1.0","type":"rich","title":"Blank Canvas","description":"A full-screen SVG canvas displays only a rounded rectangle drawn with D3's `select` and `append`. The rectangle fills the viewport dimensions, which are read from `document.body.clientWidth` and `clientHeight`. The visualization uses a minimal blank state with no explicit data source; the code sets the SVG's width and height attributes and applies a 40-pixel corner radius via `attr('rx', 40)`. No additional interactions or updates occur, leaving a static, empty composition.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/a0331a8c249042e595e63a4df8aa0252?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}