The setting of Monticello as well as its interior decorations, which included floors covered with green-painted cloth, most reflect which idea about the American identity?

Appreciation of nature

The American Identity was the America's Gilded Age during 1980s to 1990s. It had shown the inequality and factions between the rich and the poor, the stripping of the right not to vote, corruptions and technological advancement. Montecillo's interior decorations show the classy Gilded age that was ideal at that time.