Ok, thanks, i fix the url.
I take it you're referring to the traypoweroff package on Hackage?
(because I was trying to work out how potential users - of which
admittedly I am not - were to get this icon, not where it gets installed
;-)
If so, I should point out to you that the homepage at
http://projects.haskell.org/traypoweroff/ links to a completely
different darcs repo...
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