Changes appearance of unmined stones for better identification of economic stones (ores, flux, coal).
Mainly changes ores' tiles to the first letter of the corresponding metal's name ('g' for native gold, 'c' for malachite etc.)

A complete list of changes can be found in "SAM overview.txt"

Warning:
This mod is intended for vanilla DF and has not been tested with one of the more graphic tilesets.

It is generally not compatible with mods that change one of the following files:
inorganic_stone_mineral.txt
inorganic_stone_layer.txt