[xmonad] How is this screenshot done?

[Dominik Bruhn]

Hy,
I found this screenshot:
http://haskell.org/haskellwiki/Image:Screen-ohmega-tab-gnome-twopane.jpg

How is the tabbing done in this screen? The upper right window seems to have
multiple tabs. Is this possible using xmonad?

Thanks for any help
-- 
Dominik Bruhn
mailto: dominik at dbruhn.de
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