Heres some optional info here for those playing clerics, paladins, or just pious (or impious) characters, especially the last table which is very flavoursome and also mentions some associated themes with various deities of faerun. If you always wanted to know what colour the robes of that cleric should be, it mentions that here also.
It's an official web enhancement PDF file.
http://www.wizards.com/default.asp?x=dnd/we/20020504a
A lot of the earlier part of the document is aimed more at d.m's the later table with manifestations, associated gems, creatures and colours is for anybody.