Examine source code of tinyt

{
  "manifest_version": 2,
  "name": "tinyt",
  "version": "1.1",
  "description": "TINY t.",
  "icons": {
    "48": "icons/Cactus48.png"
  },
  "content_scripts": [
    {
      "matches": [
        "*://*.nytimes.com/crosswords/*"
      ],
      "js": [
        "tinyt.js"
      ]
    }
  ]
}