What about things like the Trees? the Saplings? Windows? Water? Dirt? Farmplots? These don't appear to be objects or creatures?
How would I say add in a special new ground-tile or new tree sprite for specific trees or barrel etc?
Buildings and Creatures are configurable. Everything else, we are still working on...
A lot of stuff will need to be more configurable: mods can add all sorts of changes for us to cope with. But there's only so much we can do at a time.
So anything beyond Buildings and Creatures you'd need to do some programming for.
I am interested in making art for this program.
Interested enough to finally register on the forums.
Welcome aboard 8-)
What still needs to be done, what size do the images need to be, and specifically do you want someone to make graphics for the individual dwarf job classes (woodworker, mason, etc.)
My recommended approach would be:
If you can provide a missing sprite, or improve upon an existing sprite, then give it a go and we can see how it works out. Run the program, see what missing stuff annoys you, and fill in the blanks.
The only exception to this would be keeping an eye on the thread, so you can see what other folks are doing rather than duplicating effort.
The easiest way to get a feel for the image size is the open up the objects.png and have a look at one of the wall tiles. Since that are a "full" tile, your image will need to fit within that.
Currently the system doesn't support professions, but I cant imagine it will take that long. However, it will probably also start providing sprite combination functionality like for the buildings, so rather than designing individual tiles, you can design a base dwarf and apply modifications such as different equipment and such. This may or may not be easier- we'll see how it goes.
Jonask and Solifuge reserve the final decision on what art goes into the trunk release, but given that its pretty configurable, I imagine drop in graphics packages will be quite doable.