This project provides a GRF build infrastructure for the 32 bit-per-pixel "extra zoom"
graphics that were developed for OpenTTD. The .grf file which this project builds is
suitable for use in OpenTTD versions 1.2.0 and above.

The project builds a single .grf file which contains graphics replacements for the
base-, arctic-, tropical- and extra-sets, and it can be loaded ontop of any graphics
baseset (It has been tested and confirmed to work on top of original_windows,
OpenGFX and zBase)