Fork of Blank Canvas
This fork of a blank canvas renders a single, large rounded rectangle that fills the entire browser viewport. The SVG canvas is dynamically sized using the document’s client dimensions, and a `rect` element is appended with a 40-pixel corner radius. Built with D3 v5 and SVG, the example uses `select` to target the `svg` element and sets its `width` and `height` attributes before adding the shape, demonstrating a minimal setup for a full-screen static visualization.