Examine source code of Password Wizard

{
  "name": "Password Generator",
  "description": "Generate unique passwords.",
  "version": "1.0.0",
  "manifest_version": 2,
  "homepage_url": "https://github.com/munabedan/password-generator-extension",
  "browser_action": {
    "default_popup": "index.html",
    "default_title": "Password Generator",
    "default_icon": {
      "48": "logo.png",
      "96": "logo.png"
    }
  },
  "icons": {
    "48": "logo.png",
    "96": "logo.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{081f1476-0da5-4a24-a910-7ea17ab809c9}"
    }
  }
}