MediaWiki/skins

About

The MediaWiki skinning system has been significantly revised as of version 1.37.1. It now makes extensive use of Mustache and Less:

• Mustache (template system) handles HTML output
• Less (stylesheet language) handles CSS output

Related

• skin.json

Links

• Reference:
  • Manual:Skins
  • Manual:How to make a MediaWiki skin
• Wikimedia Skins Lab: browse existing skins or build your own, with live rendering
  • Unfortunately, it doesn't seem possible to choose a starting skin up on which to base your customizations.