Cool, I just tried it out. Worked great. I notice that it also remembers the states of the check-boxes. Nice.
One super-minor nitpick: The first time I ran it, the "invert colors" and "color reduce" check boxes were defaulted to "on", causing my image to not work the very first time. After unchecking those boxes and re-doing it, it worked fine. Perhaps those should have defaults of "off"? Or maybe not... I don't know if other people create their source images in such a way that those boxes are needed. What about you? Do you need those boxes off or on when you use it?
In any case, after turning off the check boxes, it remembers their state, so it's no big deal.
___________
Tony Fabris