Manual:$wgSkinExtensionFunctions

Extensions: $wgSkinExtensionFunctions
Extension functions for initialisation of skins.
Introduced in version:1.4.0 (r4934)
Removed in version:1.18.0 (r87487)
Allowed values:Unspecified
Default value:array()

Details edit

Used to load "skin" related extensions. The modules are loaded pretty much in the same way as the default extensions functions.

The list is processed in file Setup.php, somewhat earlier than $wgExtensionFunctions .