Help:Preferences
From Gramps
Clicking on the Preferences link in the upper right while logged in allows you to change how the MediaWiki preferences settings will show information from the Gramps wiki.
In the Preferences page, you will be presented with the User profile tab options, as well as a bar of tabs across the top for changing other types of settings. The other tabs are: Appearance, Editing, Recent changes & Watchlist.
The Internationalisation section of the User profile tab provides a choice of the language in which the Gramps wiki's fixed sections are displayed. Different presets for fonts, colors & layout of the wiki may be selected from the Skin section of the Appearance tab.