Examine source code of leetStats

{
  "manifest_version": 3,
  "name": "leetStats",
  "version": "1.0",
  "description": "Visualize your progress with advanced analytics and showcase your stats with a custom, shareable card.",
  "permissions": [
    "storage",
    "unlimitedStorage"
  ],
  "host_permissions": [
    "https://leetcode.com/*"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "leetstats@example.com"
    }
  },
  "icons": {
    "16": "assets/icons/icon16.png",
    "32": "assets/icons/icon32.png",
    "48": "assets/icons/icon48.png",
    "128": "assets/icons/icon128.png"
  },
  "action": {
    "default_title": "leetStats",
    "default_icon": {
      "16": "assets/icons/icon16.png",
      "32": "assets/icons/icon32.png",
      "48": "assets/icons/icon48.png"
    }
  },
  "content_scripts": [
    {
      "js": [
        "assets/inject.ts-P1o0u921.js"
      ],
      "matches": [
        "https://leetcode.com/*"
      ],
      "run_at": "document_idle"
    }
  ],
  "web_accessible_resources": [
    {
      "matches": [
        "https://leetcode.com/*"
      ],
      "resources": [
        "assets/images/*",
        "assets/trophies/*",
        "assets/icons/*",
        "assets/inject.ts-P1o0u921.js"
      ]
    }
  ]
}