Examine source code of Claude Usage Tracker

{
  "manifest_version": 3,
  "name": "Claude Usage Tracker",
  "version": "1.0.9",
  "description": "See your Claude usage right in the sidebar and composer — no more digging into settings.",
  "icons": {
    "16": "icons/icon16.png",
    "32": "icons/icon32.png",
    "48": "icons/icon48.png",
    "96": "icons/icon96.png",
    "128": "icons/icon128.png",
    "256": "icons/icon256.png"
  },
  "content_scripts": [
    {
      "matches": [
        "https://claude.ai/*"
      ],
      "js": [
        "usage-provider.js",
        "content.js"
      ],
      "css": [
        "styles.css"
      ],
      "run_at": "document_idle"
    }
  ],
  "permissions": [
    "storage"
  ],
  "host_permissions": [
    "https://claude.ai/*"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "claude-usage-stats@prashanthmani16.github.io",
      "strict_min_version": "140.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    },
    "gecko_android": {
      "strict_min_version": "142.0"
    }
  }
}