Examine source code of ProxyHat - Proxy Manager

{
  "manifest_version": 2,
  "name": "ProxyHat - Proxy Manager",
  "version": "1.0.0",
  "description": "Smart proxy routing for every site. Manage proxy profiles, set per-domain rules, and connect your ProxyHat account for residential proxies.",
  "permissions": [
    "proxy",
    "storage",
    "tabs",
    "identity",
    "webRequest",
    "webRequestBlocking",
    "<all_urls>",
    "https://*.proxyhat.com/*"
  ],
  "incognito": "spanning",
  "background": {
    "scripts": [
      "traffic-utils.js",
      "config.js",
      "oauth.js",
      "proxyhat-api.js",
      "proxyEngine.js",
      "authHandler.js",
      "background-universal.js"
    ]
  },
  "browser_action": {
    "default_popup": "popup/popup.html",
    "default_title": "ProxyHat",
    "default_icon": {
      "16": "favicon.svg",
      "32": "favicon.svg",
      "48": "favicon.svg"
    }
  },
  "options_ui": {
    "page": "options/options.html",
    "open_in_tab": true
  },
  "icons": {
    "16": "favicon.svg",
    "48": "favicon.svg",
    "128": "favicon.svg"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "extension@proxyhat.com",
      "strict_min_version": "91.1.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ],
        "optional": []
      }
    }
  }
}