Its in .py format so it works in poser pro 2014 without problem , how I use it is:

In material room, select one item, remove texture, with item selected run script and all items will be like the first selected item.

The script has sometimes stuck in a loop if I have a character in a scene, but for props its wonderful.

My use is not for performance boost but sometimes i like to make renders with everything in the same colours :-)