Examine source code of Penman.ai

{
  "name": "Penman.ai",
  "description": "Write remarkably effective replies with AI",
  "version": "1.1.2",
  "manifest_version": 2,
  "homepage_url": "https://penman.ai",
  "permissions": [
    "storage",
    "clipboardWrite"
  ],
  "options_ui": {
    "browser_style": true,
    "page": "src/options/options.html",
    "open_in_tab": true
  },
  "browser_action": {
    "default_icon": "icons/icon32.png",
    "default_title": "Penman - Write remarkably effective replies with AI",
    "default_popup": "src/popup/popup.html"
  },
  "icons": {
    "16": "icons/icon16.png",
    "32": "icons/icon32.png",
    "48": "icons/icon48.png",
    "128": "icons/icon128.png"
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{1cd8bd7c-1716-447a-b159-67a806fdcf8e}"
    }
  }
}