Examine source code of CompassMenu

{
  "manifest_version": 2,
  "name": "__MSG_extensionName__",
  "version": "3.2.5",
  "description": "__MSG_extensionDescription__",
  "author": "taku0 ( https://github.com/taku0 )",
  "homepage_url": "http://www.tatapa.org/~takuo/compass_menu/",
  "default_locale": "en",
  "applications": {
    "gecko": {
      "id": "compass_menu@tatapa.org"
    }
  },
  "icons": {
    "48": "icons/icon.png"
  },
  "permissions": [
    "<all_urls>",
    "storage",
    "tabs",
    "bookmarks",
    "downloads",
    "sessions",
    "clipboardWrite",
    "clipboardRead",
    "search"
  ],
  "background": {
    "scripts": [
      "lib/commands.js",
      "lib/main.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "all_frames": true,
      "js": [
        "data/detectContext.js",
        "data/menu.js",
        "data/menuItems.js",
        "data/queryPageState.js",
        "data/types.js",
        "data/vector2D.js",
        "data/initialize.js"
      ],
      "run_at": "document_start"
    }
  ],
  "options_ui": {
    "page": "options/options.html"
  },
  "web_accessible_resources": [
    "data/menu.svg",
    "data/menu_icons.svg"
  ]
}