Well, since then the mayor put into policy that county builidings can only be used for county purposes. That leaves Kwanzaa celebrations out. It appears that although Kwanzaa is touted as being a "non-religious" event, many found religious elements in Kwanzaa enough to have it banned as religous.
It seems the right thing to do in light of the complex arguments surrounding the Kwanzaa event. Keeping things business-only and applying the rules across the board, without exception, is the best way to run an organization, be it public- or private-sector.
Kwanzaa is not, strictly speaking, a religious observance, but it's close enough to one that it set off a firestorm of criticism in county government when Brooks announced her plan. (Editorial: County Building Policy Emerging, 1/23/2008.)
A bit strict and takes the fun out of celebrations in the work place, but it's fair. If you won't allow Christmas, then don't allow other celebrations as well.
Case closed.