New version 0.7 transparency doesn't work

I tested the new version using the “Scatter plots with a legend”, and I find that the function transparency doesn’t work. Does anybody know how to fix it?

I suspect your system has ghostscript 10.0.0 which GMT was not set up to handle. We have fixed that in GMT master repo so perhaps you need to use the very latest GMT source for this - or downgrade gs to 9.56.1