[pmwiki-users] categories, how to translate category name for display

[lists at basel-inside.ch]

Hello

I like to have categories as large, medium, small
and translate them to a target language as gross, mittel, klein

is it somehow possible to translate
[!small]
[[!Small|$Small]]] <- doesn't seem to work

thanks in advance for the hints
regards
Patrick Ogay

example:
http://orientalcarpetstudio.com.jovinus-meta.net/Carpet/10027?Trail=Category.Medium (categories on the right not  
translated)