{"version":"1.0","type":"rich","title":"Blank Canvas","description":"A blank, rounded rectangle fills the browser viewport, adapting to the full dimensions of the window. The visualization is a minimalist canvas, rendered as a single SVG rectangle with no data plotted. It uses D3 v6's `select` and `attr` methods to size the SVG element against the body’s `clientWidth` and `clientHeight`, directly appending a `rect` with rounded corners. The piece demonstrates a foundational, empty state for a data-driven graphic.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/d16111dc221841fe97d46720456224e1?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}