Remember the visuals.inc file and its $VISUALS
indexed multi-dimensional associative array, it's now time to add a new
configuration set. This is easily done by copy and pasting the existing set and
increasing the skin id by 1(extracted from visuals.inc):
Using the browser detection as evoked in the "Browser/Platform Based
Behaviors" section, you could also decide to load a totally different skin using
a code similar to this (extracted from index.php):