Examine source code of NoAI on Google search

{
  "manifest_version": 2,
  "name": "NoAI",
  "version": "1.0",
  "description": "Adds -ai to all Google searches",
  "icons": {
    "48": "icons/no.svg"
  },
  "permissions": [
    "activeTab",
    "storage",
    "webRequest",
    "webRequestBlocking",
    "<all_urls>"
  ],
  "browser_action": {
    "default_icon": "icons/no.svg",
    "default_title": "NoAI",
    "default_popup": "popup/toggle.html"
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{7d82fca6-9992-40bd-bdb8-4da34f237d60}"
    }
  }
}