Examine source code of Tabatha

{
  "manifest_version": 2,
  "name": "Tabatha",
  "version": "0.2.0",
  "author": "Dustin Rouillard",
  "chrome_url_overrides": {
    "newtab": "index.html"
  },
  "chrome_settings_overrides": {
    "homepage": "index.html"
  },
  "description": "Sleek & dark new tab replacement",
  "icons": {
    "48": "assets/icon48.png",
    "96": "assets/icon96.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{c80c1264-b3c9-4e41-8cc7-2e62d07b6fd8}"
    }
  }
}