Examine source code of Illuminus

{
  "name": "Illuminus",
  "description": "Illuminus - Enlighten yourself. For Free.",
  "version": "0.1.1resigned1",
  "author": "Sam Gielis",
  "manifest_version": 2,
  "icons": {
    "16": "icons/icon16.png",
    "48": "icons/icon48.png",
    "128": "icons/icon128.png"
  },
  "permissions": [
    "storage",
    "activeTab",
    "webRequest",
    "webRequestBlocking",
    "http://*.standaard.be/*",
    "https://*.standaard.be/*",
    "http://*.demorgen.be/*",
    "https://*.demorgen.be/*"
  ],
  "background": {
    "scripts": [
      "./js/background.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "http://*.standaard.be/*",
        "https://*.standaard.be/*",
        "http://*.demorgen.be/*",
        "https://*.demorgen.be/*"
      ],
      "js": [
        "./js/illuminus.js"
      ],
      "css": [
        "./css/illuminus.css"
      ]
    }
  ],
  "web_accessible_resources": [
    "./css/dsfree.css",
    "./css/*",
    "./js/*"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{f72ebb2d-23d0-4100-81cb-0c519b146660}"
    }
  }
}