Examine source code of Audio Convert

{
  "name": "Audio Convert",
  "description": "Online Audio Convert",
  "version": "0.0.1.0",
  "version_name": "0.0.1",
  "manifest_version": 3,
  "action": {},
  "background": {
    "scripts": [
      "service-worker-loader.js"
    ],
    "type": "module"
  },
  "content_security_policy": {
    "extension_pages": "script-src 'self' 'wasm-unsafe-eval'; object-src 'self';"
  },
  "offline_enabled": false,
  "permissions": [
    "storage"
  ],
  "icons": {
    "16": "src/assets/logo.png",
    "24": "src/assets/logo.png",
    "32": "src/assets/logo.png",
    "128": "src/assets/logo.png"
  },
  "author": "yirui <yirui072@gmail.com>",
  "browser_specific_settings": {
    "gecko": {
      "id": "yirui072@gmail.com"
    }
  }
}