I have a Maintained and Effects window where the Icons are 16 x 16...
Is that whay you mean?
Not sure on the math... let's see they startt at 42 x 42.. 21 x 21 is half... but that doesn't work due to the "by 2" requirements of the icons.
Oh I know...! The icons are about as big as this smiley guy
Oh wait... that might be dependant of screen resolution...
You want it smaller than 1/2 or larger?
Mines smaller.
-V-