Examine source code of HispaBanners

{
  "description": "HispaBanners es una extension que agrega los banners de vuelta a Hispachan",
  "manifest_version": 2,
  "name": "HispaBanners",
  "version": "1.2.0",
  "homepage_url": "https://github.com/1-byte-man/HispaBanners",
  "icons": {
    "32": "icons/logo-32.png",
    "48": "icons/logo-48.png",
    "64": "icons/logo-64.png"
  },
  "content_scripts": [
    {
      "matches": [
        "https://www.hispachan.org/*"
      ],
      "js": [
        "hispabanners.js"
      ]
    }
  ]
}