Currently there's only 2 texture packs, Simplex and Moderno. Simplex is the default, and the one I created. I hired an artist for Moderno, and it turned out much better.
I would recommend playing a game or 2 with each and seeing which you'd prefer.
Also, if you're an artist interested in this project, texture packs are very easy to create. Just copy one of the ones in data/spritepacks and go from there.
If you have any questions, or you're interested in the Base Wars community, feel free to join our Discord: