Examine source code of Scjvb postpoetser

{
  "manifest_version": 2,
  "name": "Scjvb postpoetser",
  "version": "1.0",
  "description": "Maak posts van Scjvb leesbaar.",
  "icons": {
    "48": "icons/48.png"
  },
  "content_scripts": [
    {
      "matches": [
        "*://*.fok.nl/*"
      ],
      "js": [
        "Scvjb_postpoetser.js"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{b002cd55-5044-4476-8e93-8a43c5ad2b51}"
    }
  }
}