From WikiApiary, tracking Standard and over 3,200 other skins

Name: Standard (ID: 11824) Default skin image
Author(s): No authors provided.
Description: Standard was a legacy skin, i.e., it was based on the class SkinLegacy. It was removed from MediaWiki Core in version 1.22
Tags: obsolete, removed
Related extensions: This skin has no related extensions.
Derived from: This skin is not derived from another skin.
Website count: 6160 (33.22%) (Skipped on 31 sites.)
Websites using as default 0
Websites skipping it 31
Segments Day: 1 Hour: 16

Standard is not default on any website running MediaWiki 1.22 or greater.

Standard is an available skin on websites: