Examine source code of Art Password Generator

{
  "manifest_version": 2,
  "name": "Art Password Generator",
  "version": "2.0",
  "applications": {
    "gecko": {
      "id": "art-pass@revertron.com",
      "strict_min_version": "79.0"
    }
  },
  "description": "Generate unique passwords for different sites with no need to remember.",
  "homepage_url": "https://revertron.com/artpass.html",
  "icons": {
    "16": "icons/key16.png",
    "32": "icons/key32.png",
    "64": "icons/key64.png"
  },
  "permissions": [
    "storage",
    "activeTab",
    "tabs"
  ],
  "browser_action": {
    "default_title": "Art Pass",
    "default_icon": {
      "16": "icons/key16.png",
      "32": "icons/key32.png",
      "64": "icons/key64.png"
    },
    "default_popup": "popup/art_pass.html",
    "browser_style": false
  },
  "options_ui": {
    "page": "options.html"
  },
  "commands": {
    "_execute_browser_action": {
      "suggested_key": {
        "default": "F8"
      },
      "description": "Show the password generation popup."
    }
  }
}