Art Tutorials
From The Battle for Wesnoth Wiki
The following a list of art tutorials compiled by the creators of wesnoth content, as well as links to other tutorials on the web.
Graphic Editing Programs
The following is a list of different programs for the major computing platforms which may be useful in editing graphics. Some of these are free, OSS, some are not.
Terrain Graphics
Terrain artist "Frame" has provided a tutorial describing the process of making terrain tiles in wesnoth, and how they interact with adjacent tiles.
Sprite Art
Once wesnoth's resident sprite slave, jetryl, gets a few things sorted out with this wiki, there will be several pages of interesting information linked here.
External Tutorials