dia --export= corrupts colors in PNG exports

[Roland Stigge <stigge antcom de>]

Hi,

several Debian users reported a problem which unfortunately, I can not
reproduce. Basically, on "dia --export ..." from the command line under
X, the output png image is identifiable, but the colors are wrong (e.g.
white and green on black background instead of default black on white).
>From the console (without X) and interactively (from Dia), it works for
them.

Maybe you have an idea after reading the log at

http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=275960

Thanks in advance!

bye,
  Roland
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