Examine source code of English lessons for beginners

Inspect and view changes in English lessons for beginners source codes across current and past versions
Premium users can view and search full source code, and see the source code differences between two versions.
Upgrade to premium
manifest.json
{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "name": "__MSG_appName__",
  "description": "__MSG_appDesc__",
  "version": "2.7",
  "default_locale": "en",
  "app": {
    "launch": {
      "web_url": "http://www.gymglish.com/"
    }
  },
  "icons": {
    "128": "icon_128.png"
  },
  "manifest_version": 2
}