{"version":"1.0","type":"rich","title":"fresh block","description":"A minimal D3.js starter template displays the text “Edit the code below to change me!” in a 36-pixel monospace font, centered near the top of an SVG canvas. The example creates a 960-by-500-pixel SVG element via `d3.select(\"body\").append(\"svg\")` and positions the text using `attr(\"x\", 120)` and `attr(\"y\", 200)`. It serves as a bare-bones scaffold for editing code in Blockbuilder, with no data binding or interactions beyond static text rendering. The HTML includes the d3.v4 library from a CDN and uses standard SVG attributes for styling.","provider_name":"VizHub AI Studio","provider_url":"https://next.vizhub.com","html":"<iframe src=\"https://next.vizhub.com/viz/gist-5ded8771092baacea176e7787f087126?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"1\"></iframe>","width":960,"height":500,"cache_age":3600}