This is texturemap – you can use only one material to randomize base color or other texturemap and apply new to nodes, faces or IDs of object faces.
Ordering:
You can download demo version which has limited functionality
– saving and loading of parameters is disabled. If you find this
plugin useful, you can purchase full version online using a variety
of payment methods. After purchasing a full version of plugin
you get a free version for network rendering. It allows you to
open and render scenes that use RandomColor on unlimited number
of rendernodes.