Monaco skin

A skin changes the look and feel of a site without chaging its core features.

Monaco was the skin before Wikia. Many editors prefer this skin over the new skin "Wikia", and this is why editors left wikia.

Installing Monaco skin on your own wiki before
Before the Dantman/Monaco-port, installing Monaco skin on your own wiki is incredibly difficult.

Halopedian.com stated:
 * ...the originally planned "Monaco" skin (was not implemented). We admittedly found that Monaco was more of a trouble to install due to some missing code parts, so we decided to look at a close but easier alternative to give everyone a look that may be little different, but still feels familiar to them.

mwusers.com:
 * It appears that you may be in for an impossible task (exporting Monaco to another wiki) -- the Monaco skin appears to be pretty heavily entwined in the Wikia site. I could not locate a single thread where a user successfully exported the Monaco skin to their wiki.

wikkii.com:
 * "Monaco is a wikia in-house customised skin. It is not one of the native Mediawiki skins, and to my knowledge, monaco is not in use anywhere else."