{"version":"1.0","type":"rich","title":"Hello World ","description":"This example demonstrates the VizHub V3 Runtime Environment’s interactive widget system, where holding Alt and dragging a numeric value in the code editor updates the displayed font size in real time. The code exports a `main` function from `index.js` that receives a `container` DOM element and sets its inner HTML with a centered \"Hello World!\" message using inline styling. No external libraries are used; the example relies on vanilla JavaScript and DOM manipulation to showcase the core hot-reloading workflow.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/229c8dc5de034829b32e7e2399673d41?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}