Examine source code of Simple Text Analyzer

{
  "manifest_version": 2,
  "name": "Simple Text Analyzer",
  "version": "1.0",
  "description": "A tool to analyze text by counting words and characters.",
  "icons": {
    "48": "icons/icon-48.png"
  },
  "browser_action": {
    "default_popup": "popup.html",
    "default_icon": "icons/icon-48.png"
  },
  "permissions": [],
  "browser_specific_settings": {
    "gecko": {
      "id": "{3ef55e6e-d898-46f6-b35a-379da98e2830}"
    }
  }
}