non-jagged window?

[Nicolas Cueto]

Hello All,

I've figured out how to custom shape
a stack window, and how to enable
that stack to be moved without a
control bar.

But, I guess because the shape I'm
using has a round edge, that edge
looks very jagged. The image used
for the window shape, however, has
a nice looking smooth edge.

How can I give my non-rectangular
custon shape stack a smooth
(non-dithered?) look?

Thank you.

--
Nicolas Cueto