v2 changed Saltpeter and Silk
v3 added shading to Silk, straightened the metal bars outlines, and added the five extra resources after Gold
v4 adjusted metal bars again, lightened rubber, and removed the extra resources (available from v4b, below)
This B set of v3 includes many extra icons. PLEASE NOTE: when you add resources with Civ3Edit, you can only add two new resource icons. So you can never use more than twenty-four different icons. Also, you can only add bonus resources, adding luxury resources will crash Civ3, and adding strategic resources may be unsafe as well.
This file adds shellfish, copper, papyrus, cotton, lumber, wood, white furs, oil, fruits, salt, metal, game, sulphur, and sheep.