Examine source code of Create a Password Generator

{
  "manifest_version": 2,
  "name": "Create a Password Generator Basic",
  "version": "1.0",
  "description": "With this tool, users can easily customize their password by specifying the desired length and selecting options like­ including symbols, numbers, lowercase, and uppe­rcase letters. Furthermore, the gene­rated password can be convenie­ntly copied to the clipboard for immediate­ use.",
  "permissions": [],
  "browser_action": {
    "default_popup": "game.html",
    "default_icon": {
      "128": "images/crea-logo.png"
    }
  },
  "icons": {
    "128": "images/crea-logo.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{60676c1e-46f8-45bf-b98f-a1498bad3dcf}"
    }
  }
}