CaBaL120's ebony armor is the definitive pinnacle of retextures. So much so that next to them, the default weapons look uglier than a hagraven's backside. This mod darkens and recolors the ebony weapons with the explicit goal of matching the Book of Silence ebony armor. Now pay close attention because this is VERY important!:
I do not have permission to include CaBaL120's cubemap in the download, but it is absolutely necessary for the mod to work. So, go to your Data folder and find
textures\cubemaps\Chitin_e_ebony.dds

If you previously downloaded Book of Silence it should be there already.

Make a copy of Chitin_e_ebony.dds in the same folder (i.e. cubemaps), and change the name of the copy to Chitin_e.dds
That's it, you're done. DO NOT skip this process or your weapons will look all wrong.