Examine source code of Top Scroll Toggle

{
  "manifest_version": 3,
  "name": "Top Scroll Toggle",
  "version": "1.0",
  "description": "Скроллит страницу вверх и возвращает обратно при повторном нажатии.",
  "permissions": [
    "activeTab",
    "scripting"
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "action": {
    "default_icon": {
      "48": "icons/icon48.png",
      "96": "icons/icon96.png"
    },
    "default_title": "Вверх / Обратно"
  },
  "icons": {
    "48": "icons/icon48.png",
    "96": "icons/icon96.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "top-scroll-toggle@nixsi.addon",
      "strict_min_version": "140.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ],
        "optional": []
      }
    }
  }
}