{"version":"1.0","type":"rich","title":"blank canvas","description":"A blank white canvas fills the browser viewport, rendered as a single rounded rectangle. The visualization demonstrates a minimal starting point for D3-based projects, showing an empty SVG surface with no data or interactive elements. The code uses D3 v5's `select` function to access the SVG element, reads its width and height attributes, and appends a `rect` with a 40-pixel corner radius using `svg.append`. A fixed-position CSS body ensures the canvas remains centered and non-scrollable.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/d29df193350641fbaf817694f6ba70ab?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}