Examine source code of RandomPasswordGenerator

{
  "name": "Random Password Generator",
  "description": "Generates random passwords.",
  "version": "1.0",
  "manifest_version": 3,
  "icons": {
    "16": "icons/icon16.png",
    "32": "icons/icon32.png",
    "48": "icons/icon48.png",
    "96": "icons/icon96.png"
  },
  "action": {
    "default_icon": {
      "16": "icons/icon16.png",
      "32": "icons/icon32.png",
      "48": "icons/icon48.png",
      "128": "icons/icon96.png"
    },
    "default_popup": "index.html"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "miss_anjana@hotmail.com"
    }
  },
  "permissions": [
    "clipboardWrite"
  ]
}