change the color of xrif layers

[il secco]

Bye to all,
I would like to know how to make sure that the colors of a dwg inserted as xref to the intern of another file (dwg) are different from the original colors?
for example:
how can I see a xref all in gray, or just some layers in gray, if originally all layers are colored?
thanks to all

 

[rpor66]

When you insert the xref you automatically create a layer filter for xref, select what interests you and change the color.

p.s.: It is obvious that the entities of the xref must have color bylayer.

 

[il secco]

Thank you.