So, I am slowly learning the user interface and I love the simplicity of dragging an image onto the tabletop to make tokens. I have also (miracle of miracles) taught myself how to make tokens invisible using gimp. However, I would like to make round, portrait-style tokens and can't figure out how to use gimp to make the images round. Does anyone here know of a tutorial they could point me to to demonstrate how to do this? I've tried searching for one, but my Google-fu has failed me. Thanks in advance, for any pointers you can offer to the technologically impaired. :)