Questions, looking for someone experienced with speedtree

[Austin Shelton]

Hello everyone, I'll get right to the point. I'm redoing the textures of a game I love in HD. The tree textures are very low res, so I want to have them redrawn in HD while matching the original look as perfectly as possible. I don't know how to draw tree bark yet, so when I reached out for help, someone suggested speedtree.

Is speedtree able to be used to create custom textures, or does it kind of just randomly generate things? A good rundown of how it all works would be greatly appreciated. Thanks in advance!