Manual:$wgSkipSkin/en

From Linux Web Expert

<translate> Skins</translate>: $wgSkipSkin
Specify the name of a skin that should not be presented in the list of available skins.
<translate> Introduced in version:</translate>1.4.1
<translate> Deprecated in version:</translate>1.23.0 (Gerrit change 113341; git #c5b5e450)
<translate> Removed in version:</translate>1.35.0 (Gerrit change 560354; git #d50b9592)
<translate> Allowed values:</translate>(string)
<translate> Default value:</translate>''

Details

Specify the name of a skin that should not be presented in the list of available skins. Use for blacklisting a skin which you do not want to remove from the skins directory.

<translate> (deprecated in <tvar name=2>1.23</tvar>)</translate> Use $wgSkipSkins instead. For example:

$wgSkipSkin = "cologneblue";

would become

$wgSkipSkins[] = "cologneblue";