Designing new graphics

Can anyone tell me if there is anywhere on the web that would give
me an "idiot's guide" to making new graphics for TTD in the new
format? I've had my own setup for the game for ages, using a
convoluted method with a combination of TTDAlter, GRFcodec and a
modified Vehicle.dat file - and I would like to update it to the
new format that TTDPatch now uses. The only problem is I have no
idea where to start! Any pointers would be most appreciated. Thanks

--
Tom Cumming

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Tom Cumming wrote:

> Can anyone tell me if there is anywhere on the web that would give
> me an "idiot's guide" to making new graphics for TTD in the new
> format?

You´d like to check the Wiki pages on http://wiki.ttdpatch.net/tiki-index.php
for some tutorial information on this topic.

Mmh, maybe these ones first:

http://wiki.ttdpatch.net/tiki-index.php?page=GRFActionsDetailed
http://wiki.ttdpatch.net/tiki-index.php?page=GRFTutorial

regards
Michael