[plt-scheme] combining 'center and 'tall layouts in Slideshow

From: Sam TH (samth at ccs.neu.edu)
Date: Sat Jan 5 15:49:47 EST 2008

I'm writing a Slideshow presentation, and it seems that #:layout
'center centers the slide horizontally as well as vertically.  Is
there a way to preserve the horizontal centering while changing the
layout to something like 'tall?

sam th
samth at ccs.neu.edu

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