Examine source code of Illusory – Proxy Manager

{
  "manifest_version": 2,
  "name": "Illusory – Proxy Manager",
  "version": "0.0.2",
  "version_name": "0.0.2",
  "description": "__MSG_app_desc__",
  "default_locale": "en",
  "browser_specific_settings": {
    "gecko": {
      "id": "browsext@illusory.io",
      "strict_min_version": "91.1.0"
    }
  },
  "icons": {
    "16": "mini-logo-16.png",
    "32": "mini-logo-32.png",
    "48": "mini-logo-48.png",
    "128": "mini-logo.png"
  },
  "browser_action": {
    "default_popup": "index.html#/popup",
    "default_icon": {
      "16": "mini-logo-16.png",
      "32": "mini-logo-32.png",
      "48": "mini-logo-48.png",
      "128": "mini-logo.png"
    }
  },
  "background": {
    "scripts": [
      "assets/background.js"
    ]
  },
  "permissions": [
    "<all_urls>",
    "storage",
    "proxy",
    "webRequest",
    "webRequestBlocking",
    "privacy",
    "tabs"
  ]
}