This is the older mod that works on 1.8.x, 1.9.x versions and now was tested on 1.10.1 version. Mod made for Euro Truck Simulator 2 by nox_xss.
This mod replaces the default grass with new and better looking one. Should work fine with custom maps too.
Link1 Download (6MB) (mediafire)
Link2 Download (6MB) (zippyshare)