I also wandered through the Festival of Trees on Thanksgiving afternoon (in Valley River Inn, a private business) and was amazed by the forest of fancy trees and fancy prices for the trees and the prize packages they come with.  While there were trees with a Starwars theme, Curious George, sunflowers, etc. I think Mr. Compte is correct, I don't recall seeing any decorations such as angels, nativity scenes, etc.  I'm not sure if Cascade Health Solutions (also a private business, not a government organization) has any sway over the tree designers, but it is perhaps a little unusual as Mr. Compte notes, that there was a lack of any Christian Christmas symbolism in any of the decorating schemes.  Maybe Christian doesn't generate big buck donations.