Credits for Cosmos
From Test Wiki
The Cosmos skin is written and maintained by Universal Omega.
SamanthaNguyen and others have also contributed to the development of the Cosmos skin.
Portions of the skin are based on the Onyx skin (https://www.mediawiki.org/wiki/Skin:Onyx),
released under the GNU General Public License, version 2 or later, by Daniel Beard, Jack Phoenix
and other contributors.