Examine source code of gRPC Panel

{
  "manifest_version": 3,
  "name": "gRPC Panel",
  "version": "1.1.4",
  "description": "DevTools panel to inspect gRPC-web traffic.",
  "homepage_url": "https://github.com/poooow/grpc-panel",
  "permissions": [
    "storage"
  ],
  "icons": {
    "16": "images/icon-16.png",
    "32": "images/icon-32.png",
    "48": "images/icon-48.png",
    "128": "images/icon-128.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "1219d3fc-3ec2-4798-b9da-b55d7d4400d9@mozilla",
      "strict_min_version": "109.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  },
  "devtools_page": "devtools.html"
}