Examine source code of Cricket Live Fullscreen

{
  "name": "Cricket Live Fullscreen",
  "version": "0.0.2resigned1",
  "manifest_version": 2,
  "description": "Adds a fullscreen button to Cricket Australia streaming.",
  "icons": {
    "128": "images/icon.png"
  },
  "default_locale": "en",
  "permissions": [
    "tabs"
  ],
  "page_action": {
    "default_icon": "images/icon.png",
    "default_title": "Cricket Australia Fullscreen"
  },
  "content_scripts": [
    {
      "matches": [
        "*://live.cricket.com.au/*"
      ],
      "js": [
        "scripts/contentInjection.js"
      ],
      "run_at": "document_idle",
      "all_frames": false
    }
  ],
  "web_accessible_resources": [
    "scripts/injection.js"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{766fc799-0684-4bc0-9bcb-6779c58236b0}"
    }
  }
}