How to specify color for Treegrid fontawesome icons in xml format

In the example xml format used in your sample.
Fonticons xml TreeGrid Sample

What is the attribute to specify color for the icon for the cell?
Also I remember there was a summary page of full XML/JSON specification for each of these components. Is it still there somewhere? This is for DHTMLX 6.4.

Unfortunately it is not available to change the icon color for the treegrid. It uses the same color as your row text font.

Also I remember there was a summary page of full XML/JSON specification for each of these components. Is it still there somewhere? This is for DHTMLX 6.4.

This template page was available in the documentation for the 3.5v. Currently there is no such specification article in the docs.