Examine source code of GPTrue or False

{
  "manifest_version": 2,
  "name": "GPTrue or False",
  "version": "3.0.2",
  "description": "Display the likelihood that a sample of text was generated by OpenAI's GPT-2 model.",
  "icons": {
    "16": "./images/icon/16.png",
    "32": "./images/icon/32.png",
    "64": "./images/icon/64.png",
    "128": "./images/icon/128.png"
  },
  "author": "Giulio Starace",
  "permissions": [
    "https://huggingface.co/*",
    "activeTab"
  ],
  "browser_action": {
    "browser_style": true,
    "default_icon": {
      "16": "./images/icon/16.png",
      "32": "./images/icon/32.png",
      "64": "./images/icon/64.png",
      "128": "./images/icon/128.png"
    },
    "default_popup": "popup/index.html",
    "default_title": "GPTrue or False"
  },
  "background": {
    "scripts": [
      "./libraries/browser-polyfill.min.js",
      "./background/background.js"
    ]
  }
}