Question Style Conflict with template

Hello Kunena team,

Very much appreciate using your forum for my Joomla installations but have got an issue with the current one[strike] - actually two.[/strike] *** Moderator's comment: one topic for each issue, please ***

Joomla 2.5.6
Kunena 2.01

First:
My client wants to use a dark template which seems to be in conflict with Kunenas standard text color setting.
Postings do appear now as light grey on white, barely readable.
I can't find any switch or button to set the text color for the forum and my knowledge about the Kunena CSS structure is very limited. I hope there is an easy way to bring the text color back to black or any other dark color without any bigger efforts because my clients wants to keep the template as is.
Website example and open access for guests :

[strike]Second:
... and this is a strange one, because it always worked fine so far.
After installing the German language files with the installation package provided on your website - everything worked fine and is being translated into German language (Buttons, etc.), as expected - except, the upper tabs on the Kunena menu. These remain in English. On other installations I made recently, they were translated, too.
[/strike]
Hope to find help and advise how to fix these issues.
Thank you in advance for your kind help.

Regards,
Thomas

thorab wrote: I can't find any switch or button to set the text color for the forum

There isn't one

thorab wrote: and my knowledge about the Kunena CSS structure is very limited

You don't require knowledge about Kunena to apply changes to CSS. Please see How do I change the colours of my template in Kunena? . I hope this helps.