I love your program and great implementation!
One thing I do a lot, after taking a screen capture (region), I go to the effects menu (magic wand) and choose border and drop shadow. This gives a nice professional look when I later paste it into an email or Word doc. I do this process about 95% of the time for a quality image that stands out.
It'd be nice if there was a way to apply the effects when the image is created/opened in the Greenshot image editor automatically. A bonus would be to then copy this completed image (w/ border and drop shadow) immediately back to the Windows clipboard.
Thanks for your awesome program!