I'm surprised you wouldn't find this offensive. I would. And I bet most of Judge Moore's defenders on this board would.
1. No religion established.
2. The Chief Justice is responsible for the appearance of the building.
3. The display also had a developmental history aspect to it.
Based on #2, Buddhist artwork could be put up, too. I'm acutally betting that you can find it on the walls in some courthouses around America. Those drawings with Chinese characters have been quite popular. The words and pictures reflect aspects of Buddhist/Confucian/Taoist/etc. religion.
I could care less.