Examine source code of JsonBerth

{
  "manifest_version": 3,
  "name": "JsonBerth",
  "version": "1.0.0",
  "description": "Format, minify, and key-sort JSON quickly inside a popup workspace.",
  "icons": {
    "48": "sigil/icon-48.png",
    "96": "sigil/icon-96.png",
    "128": "sigil/icon-128.png"
  },
  "action": {
    "default_title": "JsonBerth",
    "default_popup": "workspace/view.html",
    "default_icon": {
      "48": "sigil/icon-48.png"
    }
  },
  "permissions": [
    "clipboardWrite"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{44762640-78af-4963-a1a0-9292c02edb08}",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  }
}