Code to change colour of elements

Hi all,

I have a script that isolates any elements from an initial batch mesh that have problems associated with them. It places them into a set but leaves them as the default yellow colour. It becomes a pain to 'isolate only' and rebuild the mesh up around them. So I have been changing the colour of these elements by hand. Does anyone know how I could write into my script a line that changes the colour for me?

Thanks,