Examine source code of Old Genius Redirect

{
  "name": "Old Genius Redirect",
  "description": "Ensure Genius always loads the old design",
  "version": "1.0.2",
  "manifest_version": 2,
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "icons": {
    "48": "img/icon-48.png",
    "128": "img/icon-128.png"
  },
  "permissions": [
    "webRequest",
    "webRequestBlocking",
    "*://genius.com/*",
    "*://www.genius.com/*"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{c2efd362-75cf-413d-bbe2-6b22feefb5a1}"
    }
  }
}