Examine source code of Just a New Tab

{
  "manifest_version": 3,
  "name": "__MSG_extName__",
  "version": "1.61",
  "description": "__MSG_extDesc__",
  "default_locale": "zh_TW",
  "browser_specific_settings": {
    "gecko": {
      "id": "just-new-tab@ivanusto.yblog.org",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  },
  "permissions": [
    "storage",
    "unlimitedStorage"
  ],
  "optional_permissions": [
    "topSites"
  ],
  "host_permissions": [
    "https://zenquotes.io/",
    "https://v1.hitokoto.cn/",
    "https://api.mymemory.translated.net/",
    "https://api.animechan.io/",
    "https://api.open-meteo.com/",
    "https://geocoding-api.open-meteo.com/",
    "https://yblog.org/"
  ],
  "optional_host_permissions": [
    "http://*/*",
    "https://*/*"
  ],
  "chrome_url_overrides": {
    "newtab": "newtab.html"
  },
  "icons": {
    "16": "icons/icon-16.png",
    "48": "icons/icon-48.png",
    "128": "icons/icon-128.png"
  }
}