Examine source code of JSON Expander for Splunk

{
  "action": {
    "default_title": "Expand Splunk JSONs"
  },
  "background": {
    "scripts": [
      "js/background.js"
    ],
    "service_worker": "js/background.js",
    "type": "module"
  },
  "browser_specific_settings": {
    "gecko": {
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      },
      "id": "splunk-json-expander@aserpi.it",
      "strict_min_version": "142.0"
    },
    "gecko_android": {
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      },
      "id": "splunk-json-expander@aserpi.it",
      "strict_min_version": "142.0"
    }
  },
  "description": "Expand deeply nested JSON objects in Splunk with a single click.",
  "icons": {
    "48": "img/icon-48.png",
    "128": "img/icon-128.png"
  },
  "manifest_version": 3,
  "name": "JSON Expander for Splunk",
  "optional_host_permissions": [
    "*://*/*"
  ],
  "options_ui": {
    "page": "html/options.html",
    "open_in_tab": false
  },
  "permissions": [
    "activeTab",
    "contextMenus",
    "scripting",
    "storage"
  ],
  "version": "2.1.0"
}