Examine source code of WhatStack

{
  "manifest_version": 3,
  "name": "getStack",
  "version": "3.0.0",
  "description": "A Chrome extension that tells the tech stack of a website.",
  "permissions": [
    "activeTab",
    "scripting"
  ],
  "host_permissions": [
    "<all_urls>"
  ],
  "icons": {
    "16": "./ico.png",
    "48": "./ico.png",
    "128": "./ico.png"
  },
  "action": {
    "default_popup": "popup.html",
    "default_icon": {
      "16": "./ico.png",
      "48": "./ico.png",
      "128": "./ico.png"
    }
  },
  "commands": {
    "_execute_action": {
      "suggested_key": {
        "default": "Shift+Alt+G",
        "mac": "Shift+Alt+G"
      },
      "description": "Toggle stack popup"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "shikharaditya2004@gmail.com",
      "strict_min_version": "109.0"
    }
  }
}