Per the W3C specification, the BBS now supports alternate stylesheets. This allows you to instantly change the look of the board, instead of using the "My Home" section to change this in your BBS profile.

I know Mozilla Firebird supports this, as do the newer Mozilla browsers I believe. IE users? Sorry, petition Microsoft to update their browser to comply with modern web standards. Though, good luck with getting any results, as development of features in IE has dropped off quite a bit.