Enforced icon size?

["Marcel Toele" <dpy dia gmail com>]

Hey guys,

I was wondering, what is the rationale for enforcing the icon size to 22x22?

I have a sheet/set of shapes here that have auto-generated icons, 
these need to be at least 32 px wide, otherwise you cannot distinguish any of them,
there are too many of these shapes to start polishing up my pixel-art skills and
create dedicated icons for each of these...

cheers,

Marcel