Examine source code of BONUS-Melder

{
  "manifest_version": 2,
  "name": "BONUS-Melder",
  "version": "3.3.8resigned1",
  "author": "Benjamin Wozniak",
  "icons": {
    "19": "data/img/icon19.png",
    "32": "data/img/icon32.png",
    "128": "data/img/icon128.png"
  },
  "background": {
    "persistent": true,
    "scripts": [
      "data/js/background.js"
    ]
  },
  "browser_action": {
    "default_title": "BONUS-Melder",
    "default_icon": {
      "19": "data/img/icon19.png",
      "32": "data/img/icon32.png",
      "128": "data/img/icon128.png"
    }
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "css": [
        "data/css/style.css"
      ],
      "js": [
        "data/js/jquery-3.3.1.min.js",
        "data/js/mustache.min.js",
        "data/js/popup.js",
        "data/js/settings.js",
        "data/js/google_search.js",
        "data/js/content_script.js"
      ]
    }
  ],
  "web_accessible_resources": [
    "data/img/*",
    "data/css/*",
    "data/html/*",
    "data/assets/*"
  ],
  "permissions": [
    "https://www.bildungsspender.de/",
    "https://www.bildungsspender.org/",
    "https://www.wecanhelp.de/",
    "https://www.bonusspende.de/",
    "tabs",
    "storage"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{4dc0cbd7-a1ed-4184-a382-8a8ba280d3f8}"
    }
  }
}