The following settings are web preferences of the System web. These preferences override the site-level preferences in System.DefaultPreferences and Main.SitePreferences, and can be overwritten by user preferences (your personal topic, eg: WikiGuest in the Main web).
These preference settings override the defaults for this web and it's subwebs only.
3 or 6 spaces * Set NAME = value
%WEBBGCOLOR%
, it gets expanded to #FFD8AA
WEBCOPYRIGHT
before WIKIWEBMASTER
since %WEBCOPYRIGHT%
uses the %WIKIWEBMASTER%
setting.