Now "Aiuto:" always has a red background - so there must be a place where I can set up this layout.
The two questions I have:
- where to edit these layouts?
You can modify the appearance of Monobook skin for a wiki at [[MediaWiki:Monobook.css]], see e.g. http://it.wiktionary.org/wiki/MediaWiki:Monobook.css?action=edit -- each namespace has its own CSS class, so that the background can be namespace-specific (see ns-0, ns-1 etc. there).
- is there a problem if I would like to create a separate namespace
(for example "Projects:") and where to create the pre-defined layout for this part.
I had a look at this: http://meta.wikimedia.org/wiki/Help:Custom_Namespaces But this does not help me with what I search for.
AFAIK this is useful only for separate installations of MediaWiki, e.g. at your own server. On Wikimedia wikis, you are not allowed to define custom namespaces. IMHO the only possibility to modify the appearance is to use inline "style" attributes in the contents of the articles.
-- [[ cs:Mormegil | Petr Kadlec ]]