Examine source code of Auto24 Enhanced

{
  "name": "Auto24 Enhanced",
  "description": "",
  "version": "1.3.0",
  "content_scripts": [
    {
      "matches": [
        "https://www.auto24.ee/kasutatud/nimekiri.php*"
      ],
      "run_at": "document_idle",
      "js": [
        "contentScripts/main.js"
      ]
    },
    {
      "matches": [
        "https://www.auto24.ee/used/*"
      ],
      "run_at": "document_idle",
      "js": [
        "contentScripts/listing.js"
      ]
    }
  ],
  "background": {
    "scripts": [
      "background.js"
    ],
    "persistent": false
  },
  "browser_action": {
    "default_icon": "assets/icon16.png",
    "default_title": "Enhance the Auto24 site"
  },
  "icons": {
    "16": "assets/icon16.png",
    "48": "assets/icon48.png",
    "128": "assets/icon128.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{04621EF0-86AB-4859-901A-BD62A0D7B34D}",
      "strict_min_version": "57.0"
    }
  },
  "permissions": [
    "storage"
  ],
  "manifest_version": 2
}