im using gimp first off.

the sig I've got at the moment, (black, transparent background, green text, green tree python in middle) anyway, the outline of it, the step pattern thing, I want to round off my corners a bit get rid of all the 90 degree angles, just put a small curve instead. whats the best way to do this?

thanks everyone for all the advise on this, and the other 60 questions I have posted in the forums.