Setting a custom icon for MediaWiki

From Tech-Help

You can change the logo of your wiki (shown at right) by either of the following two ways:

1) By editing the image at skins/common/images/wiki.png with a graphic editor.

or

2) By altering the $wgLogo variable in the LocalSetting.php file to point to file of the image you want to use as a logo.

Please note that this logo file really should be placed in the /skins/common/images/ folder -- the $wgStylePath variable will know where to find it.

$wgLogo	="$wgStylePath/common/images/my_logo.gif";