Examine source code of Schulquiz.info Solver

{
  "manifest_version": 2,
  "name": "Schulquiz.info Solver",
  "version": "1.1.4",
  "description": "Easily solve every quiz on schulquiz.info!",
  "content_scripts": [
    {
      "matches": [
        "https://schulquiz.info/*"
      ],
      "js": [
        "js/solve.js"
      ],
      "css": [
        "css/background.css"
      ]
    }
  ],
  "icons": {
    "16": "icons/16.png",
    "48": "icons/48.png",
    "128": "icons/128.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{002d9e84-d6a6-416b-8d98-aca45097e691}"
    }
  }
}