Examine source code of Password Generator

{
  "name": "Password Generator",
  "version": "2.0.0",
  "description": "Quickly generate passwords with combinations of uppercase and lowercase letters, numbers, and symbols.",
  "manifest_version": 3,
  "author": "Zihao",
  "homepage_url": "https://idzh.cn",
  "action": {
    "default_popup": "index.html",
    "default_icon": {
      "16": "assets/icon16.png",
      "48": "assets/icon48.png"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{acf9810e-21bf-4e9d-a7c3-88c94c7e94c0}"
    }
  },
  "icons": {
    "16": "assets/icon16.png",
    "48": "assets/icon48.png",
    "128": "assets/icon128.png"
  },
  "permissions": [
    "clipboardWrite",
    "scripting"
  ]
}