Examine source code of TheLocal Unlimited

{
  "description": "Read your favorite news for free.",
  "manifest_version": 2,
  "name": "TheLocal Unlimited",
  "version": "1.1.0",
  "homepage_url": "https://github.com/oussa/thelocal-unlimited",
  "icons": {
    "16": "icons/icon16.png",
    "48": "icons/icon48.png",
    "128": "icons/icon128.png"
  },
  "content_scripts": [
    {
      "matches": [
        "*://*.thelocal.at/*",
        "*://*.thelocal.ch/*",
        "*://*.thelocal.com/*",
        "*://*.thelocal.de/*",
        "*://*.thelocal.dk/*",
        "*://*.thelocal.es/*",
        "*://*.thelocal.fr/*",
        "*://*.thelocal.it/*",
        "*://*.thelocal.no/*",
        "*://*.thelocal.se/*"
      ],
      "css": [
        "styles.css"
      ]
    }
  ]
}