[Goliath2000]

you need to compile your own textures file.
some info here:
forum.xbmc.org/showthread.php?tid=95152

to create a textures file, you need this tool (assuming you're using windows):
https://github.com/xbmc/xbmc/raw/master/...Packer.exe

and run it with this command:
TexturePacker -input media -output media\Textures.xbt

Thanks a lot Ronie