Manual:Interface/Categorytree-member-num

MediaWiki:Categorytree-member-num is displayed on category pages with sub-categories. It shows counts of sub-categories and pages. It is set to  by default.

Parameters

 * $1: number of sub-categories (??).
 * $2: number of pages in category.
 * $3: always 0 (??).
 * $4: total number of members (??).
 * $5: number of sub-categories.