You can check out some additions to Graphic SW, but I don't think you'll be able to find something. In previous times I try to find something too, but I wasn't successfull :/
This is probably dead post, or you really already resolve it but in case. Make one prepared edge texture and use it as "demo texture" for edges. Then you will need only rotate and CTRL + V into basic texture. More advanced things I can't you offer