Examine source code of Searcha

{
  "manifest_version": 2,
  "name": "Searcha",
  "version": "1.0",
  "description": "A simple and customizable search engine selector that allows users to switch between different search engines effortlessly.",
  "icons": {
    "64": "assets/icons/64.png"
  },
  "browser_action": {
    "default_icon": "assets/icons/64.png",
    "default_popup": "popup.html",
    "default_title": "Searcha"
  },
  "permissions": [
    "storage"
  ],
  "web_accessible_resources": [
    "icons/*"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{7367e8a6-5275-4e76-8902-2cae63fb7832}"
    }
  }
}