Examine source code of Sign in with ChatGPT

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "manifest_version": 3,
  "name": "Sign in with ChatGPT",
  "short_name": "ChatGPT Auth",
  "version": "0.0.2",
  "description": "Securely sign in with ChatGPT on apps powered by OpenAI OAuth.",
  "homepage_url": "https://github.com/EvanZhouDev/openai-oauth",
  "incognito": "not_allowed",
  "minimum_chrome_version": "102",
  "icons": {
    "16": "src/assets/icon-16.png",
    "32": "src/assets/icon-32.png",
    "48": "src/assets/icon-48.png",
    "128": "src/assets/icon-128.png"
  },
  "permissions": [
    "declarativeNetRequestWithHostAccess"
  ],
  "host_permissions": [
    "http://localhost:1455/*"
  ],
  "declarative_net_request": {
    "rule_resources": [
      {
        "id": "openai_oauth_callback",
        "enabled": true,
        "path": "rules/openai-oauth-callback.json"
      }
    ]
  },
  "web_accessible_resources": [
    {
      "resources": [
        "src/confirm.html",
        "src/confirm.js",
        "src/installed.json",
        "src/assets/*"
      ],
      "matches": [
        "http://localhost/*",
        "http://127.0.0.1/*",
        "https://*/*"
      ]
    }
  ],
  "action": {
    "default_title": "Sign in with ChatGPT",
    "default_icon": {
      "16": "src/assets/icon-16.png",
      "32": "src/assets/icon-32.png",
      "48": "src/assets/icon-48.png",
      "128": "src/assets/icon-128.png"
    }
  }
}