Examine source code of MWPointTracker

{
  "manifest_version": 3,
  "name": "MWPointTracker",
  "version": "0.9.2",
  "permissions": [
    "storage"
  ],
  "options_page": "options/options.html",
  "options_ui": {
    "page": "options/options.html",
    "open_in_tab": false
  },
  "description": "Computes and displays total count for downloads and prints for models on MakerWorld's profile pages.",
  "icons": {
    "16": "images/icon-16.png",
    "32": "images/icon-32.png",
    "48": "images/icon-48.png",
    "128": "images/icon-128.png"
  },
  "content_scripts": [
    {
      "js": [
        "scripts/content.js"
      ],
      "matches": [
        "https://makerworld.com/*",
        "https://makerworld.com.cn/*"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "mwtracker@slimyfrog.com"
    }
  }
}