Examine source code of AI Text Watermark Checker

{
  "manifest_version": 3,
  "name": "AI Text Watermark Remover",
  "version": "0.3.28",
  "description": "Find and remove supported hidden Unicode and formatting artifacts from copied AI text, locally in your browser.",
  "permissions": [
    "activeTab",
    "clipboardWrite",
    "contextMenus",
    "scripting",
    "storage"
  ],
  "host_permissions": [
    "https://chatgpt.com/*",
    "https://claude.ai/*",
    "https://gemini.google.com/*",
    "https://copilot.microsoft.com/*",
    "https://www.perplexity.ai/*",
    "https://grok.com/*"
  ],
  "content_scripts": [
    {
      "matches": [
        "https://chatgpt.com/*",
        "https://claude.ai/*",
        "https://gemini.google.com/*",
        "https://copilot.microsoft.com/*",
        "https://www.perplexity.ai/*",
        "https://grok.com/*"
      ],
      "js": [
        "scanner.js",
        "answer-detector.js",
        "provider-config.js",
        "content.js"
      ],
      "run_at": "document_idle"
    }
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "ai-text-watermark-checker@aitextwatermark.com",
      "strict_min_version": "140.0"
    },
    "gecko_android": {},
    "data_collection_permissions": {
      "required": [
        "none"
      ]
    }
  },
  "icons": {
    "16": "icons/icon-16.png",
    "32": "icons/icon-32.png",
    "48": "icons/icon-48.png",
    "128": "icons/icon-128.png"
  },
  "action": {
    "default_popup": "popup.html",
    "default_title": "AI Text Watermark Remover",
    "default_icon": {
      "16": "icons/icon-16.png",
      "32": "icons/icon-32.png"
    }
  }
}