{"version":"1.0","type":"rich","title":"Blank Canvas","description":"An empty, rounded rectangle fills the entire browser viewport as a static visual canvas. The page uses D3 v5 to select the SVG element, set its dimensions to the full width and height of the client area, and append a single rectangle with a 40-pixel corner radius. The example demonstrates a minimal rendering approach with no dynamic data or interaction, relying solely on `d3.select`, SVG attribute setters, and CSS to fix the body’s position and remove margins. The result is a clean, blank slate with no additional marks or animations.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/81b8346902e940e5a83d1b638976aae2?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}