Examine source code of Let Me Navigate!

{
  "manifest_version": 2,
  "name": "Let Me Navigate!",
  "version": "1.2",
  "description": "Restores search filter navigation menu into Google Shopping search tab.",
  "permissions": [
    "activeTab"
  ],
  "content_scripts": [
    {
      "matches": [
        "*://www.google.com/search*"
      ],
      "js": [
        "content.js"
      ],
      "css": [
        "styles.css"
      ]
    }
  ],
  "icons": {
    "16": "icon-16.png",
    "48": "icon-48.png",
    "128": "icon-128.png"
  },
  "applications": {
    "gecko": {
      "id": "letmenavigate@puppy.codes",
      "strict_min_version": "80.0"
    }
  }
}