Current File : //usr/lib/firewalld/services/syncthing-gui.xml

<?xml version="1.0" encoding="utf-8"?>
<service>
  <short>Syncthing GUI</short>
  <description>Enable this option in addition to the Syncthing option to allow traffic to the Syncthing web interface. (Be sure to secure it accordingly).</description>
  <port protocol="tcp" port="8384"/>
</service>