This example displays a fullscreen P5.js canvas that shows the text "Hello P5!" centered against a gray background, with no scrollbars. It uses P5.js functions such as `createCanvas`, `draw`, and `text` to render the output, while `windowResized` and `resizeCanvas` maintain responsiveness. The setup also loads D3.js from a CDN alongside P5.js, though the sketch itself only relies on P5's core drawing API.