Apple IIgs video modes?

[carl@busop.cit.wayne.edu (carl@busop.cit.wayne.edu)]

I am new to Apple IIgs computers and I was wondering if someone could list 
its video mode specs, like resolution and color.  From what I remember I 
heard it could do a maximum of 256 colors on screen, but only 16 different 
ones per scanline out of a palette of 4,096.  But then I've seen these 
pictures that claim to be 3,200 colors.  So what's the scope?

Thanks

-
Carl Mueller
Wayne State University
email: carl@busop.cit.wayne.edu