Examine source code of Lambus

{
  "version": "2.0.4",
  "name": "__MSG_appName__",
  "description": "__MSG_description__",
  "default_locale": "en",
  "permissions": [
    "contextMenus",
    "activeTab",
    "cookies",
    "scripting",
    "*://*.lambus.com/*",
    "*://*.api.lambus.io/*"
  ],
  "manifest_version": 2,
  "icons": {
    "16": "icons/icon-16.png",
    "48": "icons/icon-48.png",
    "128": "icons/icon-128.png"
  },
  "browser_action": {
    "default_popup": "src/popup/popup.html",
    "default_icon": {
      "16": "icons/icon-16.png",
      "48": "icons/icon-48.png",
      "128": "icons/icon-128.png"
    }
  },
  "background": {
    "scripts": [
      "src/background-scripts/background.js"
    ]
  },
  "web_accessible_resources": [
    "themes/*.png",
    "fonts/*.*"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{0714a506-5af0-44fb-8fdd-0688599f6fa7}"
    }
  }
}