Examine source code of Affiliate for Good

{
  "manifest_version": 2,
  "name": "Affiliate for Good",
  "version": "1.2",
  "description": "Ermöglicht es dir, beim Onlineshopping mit nur einem Klick Gutes zu tun – komplett ohne Mehrkosten. Unterstütze geprüfte soziale Projekte, während du wie gewohnt einkaufst.",
  "permissions": [
    "tabs",
    "storage",
    "activeTab",
    "https://afg-backend.vercel.app/*"
  ],
  "background": {
    "scripts": [
      "background.js"
    ],
    "persistent": false
  },
  "browser_action": {
    "default_popup": "popup.html",
    "default_icon": {
      "48": "icons/afg.png"
    }
  },
  "content_scripts": [
    {
      "matches": [
        "https://*/*",
        "http://*/*"
      ],
      "js": [
        "contentScript.js"
      ],
      "run_at": "document_idle"
    }
  ],
  "web_accessible_resources": [
    "logo.png"
  ],
  "icons": {
    "48": "icons/afg.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "affiliateforgood@example.com",
      "strict_min_version": "109.0"
    }
  }
}