Examine source code of Ortman

{
  "manifest_version": 2,
  "name": "Ortman",
  "version": "1.0",
  "description": "Ortman ortman ortman ortman ortman ortman.",
  "icons": {
    "48": "icon48x48.png"
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "css": [
        "ortman.css"
      ]
    }
  ]
}