zk with material-icons

I assume you know how forums works in general... if you ask friendly you'll more likely get a response. It never hurts to provide some details about what you already tried. Or which version/library you are trying to use.

If prefer dedicated support, please contact https://www.zkoss.org/support

tagging with "latestrelease" also doesn't help anyone in the future ... please use something more specific e.g. 9.0.0