[website-dev] Strange color rendering in Firefox and SeaMonkey

Hi all,

I just discovered strange colors when I looked at images in our wiki:
http://wiki.services.openoffice.org/wiki/Logo_Usage_Guidelines#reduced_whitespace_for_project_internal_usage

In Firefox and SeaMonkey some of the OOo logos are standard blue 
(RGB:0,0,255) instead of the OOo blue.

In Epiphany they look ok.

I uploaded a screenshot to imagebin:
http://imagebin.org/120416

The files with wrong blue have been created with Inkscape and exported 
to .png, but I never experienced such a problem before.

Could it be a problem on my side?

I just upgraded to Ubuntu 10.10,
Firefox is version 3.6.11
SeaMonkey is version 2.0.9
Epiphany is version 2.3.0.2

Any ideas? Other browser affected?

Best regards

Bernhard