A user-friendly tool to generate a `manifest.json` file for your Progressive Web App (PWA). This utility provides a simple form to fill out all the necessary fields, including app name, icons, theme colors, and display mode. It features a live preview of the generated JSON and allows you to easily copy the output or download it as a `site.webmanifest` file. Ensure your web app is installable and has a native-like feel on mobile devices with a properly configured manifest.