Examine source code of Random Password Creator

{
  "manifest_version": 2,
  "name": "Random Password Generator",
  "version": "1.0",
  "description": "Generates a random password with small and big letters, numbers, and special characters.",
  "permissions": [
    "clipboardWrite"
  ],
  "icons": {
    "48": "icons/icon-48.png",
    "64": "icons/icon-64.png"
  },
  "background": {
    "scripts": [
      "background.js"
    ],
    "persistent": false
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "content-script.js"
      ]
    }
  ],
  "browser_action": {
    "default_title": "Random Password Generator",
    "default_popup": "popup.html"
  },
  "options_ui": {
    "page": "options.html",
    "browser_style": true
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{8a1f780b-1171-446e-9d04-84c0a7908eb4}"
    }
  }
}