Released/Complete NewGRFs
American Road Replacement Set (ARRS)

A complete road replacement set based on the road design used in the United States of America. Designed specifically to be used with the OpenGFX
base set, including full support for OpenGFX+ Landscape. Version 2 of ARRS also now includes dirt/sett roads.
This set is complete, and available for download on Bananas. For more information, click here.
There is also an ARRS version of the
Total Bridge Renewal Set available, as well as an incomplete set of eyecandy NewObjects.
NightGFX

NightGFX is a night-time version of the OpenGFX base graphic set. It's done in 32bpp to try and give a more realistic night-time feel than
previous attempts. Currently "complete" and released on Bananas, but could use some TLC to get better results.
For more info, click here.