Examine source code of AT Protocol URI Handler

{
  "manifest_version": 3,
  "name": "AT Protocol URI Handler",
  "version": "0.2.1",
  "description": "Redirect at:// URIs to their web equivalents",
  "permissions": [
    "storage",
    "webRequest",
    "tabs"
  ],
  "host_permissions": [
    "<all_urls>"
  ],
  "background": {
    "scripts": [
      "search-intercept.js"
    ],
    "service_worker": "search-intercept.js"
  },
  "options_ui": {
    "page": "options.html",
    "open_in_tab": true
  },
  "web_accessible_resources": [
    {
      "resources": [
        "handler.html",
        "handler.js",
        "compiled/background.js"
      ],
      "matches": [
        "<all_urls>"
      ]
    }
  ],
  "icons": {
    "16": "icons/icon-16.png",
    "32": "icons/icon-32.png",
    "48": "icons/icon-48.png",
    "128": "icons/icon-128.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "at-uri-handler@cuducos.me",
      "strict_min_version": "140.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    },
    "gecko_android": {
      "strict_min_version": "142.0"
    }
  }
}