Examine source code of Claude Usage Tracker

{
  "manifest_version": 2,
  "name": "Claude Pro Usage Tracker",
  "version": "2.0.2",
  "description": "Shows your Claude.ai session and weekly usage limits in a popup — no need to open the settings page.",
  "author": "AppForge",
  "icons": {
    "48": "icons/icon48.png",
    "96": "icons/icon96.png"
  },
  "browser_action": {
    "default_popup": "popup.html",
    "default_title": "Claude Pro Usage Tracker",
    "default_icon": {
      "48": "icons/icon48.png"
    }
  },
  "permissions": [
    "storage",
    "tabs",
    "alarms",
    "https://claude.ai/*"
  ],
  "background": {
    "scripts": [
      "background.js"
    ],
    "persistent": false
  },
  "content_scripts": [
    {
      "matches": [
        "https://claude.ai/*"
      ],
      "js": [
        "content.js"
      ],
      "run_at": "document_idle"
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "claude-usage-tracker@appforge.com",
      "strict_min_version": "142.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ],
        "optional": []
      }
    }
  }
}