Examine source code of Claude Prompt Manager

{
  "name": "Claude Prompt Manager",
  "description": "A browser extension to manage and apply prompts for Claude.",
  "version": "1.2.6",
  "short_name": "ClaudePM",
  "manifest_version": 2,
  "default_locale": "en",
  "icons": {
    "16": "icons/icon-16.png",
    "32": "icons/icon-32.png",
    "48": "icons/icon-48.png",
    "128": "icons/icon-128.png"
  },
  "browser_action": {
    "default_popup": "popup.html",
    "default_title": "ClaudePM",
    "default_icon": {
      "16": "icons/icon-16.png",
      "32": "icons/icon-32.png",
      "48": "icons/icon-48.png",
      "128": "icons/icon-128.png"
    }
  },
  "background": {
    "scripts": [
      "scripts/background.js"
    ],
    "persistent": false
  },
  "content_scripts": [
    {
      "matches": [
        "https://claude.ai/chat/*",
        "https://claude.ai/chats*",
        "https://claude.ai/new*",
        "https://claude.ai/project*"
      ],
      "js": [
        "scripts/contentscript.js"
      ]
    }
  ],
  "permissions": [
    "activeTab",
    "storage"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{4c476da3-fd8b-4b41-a00b-2af564293daf}"
    }
  }
}