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.
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