When in any room of the castle, press the Decoration button in the upper-right corner to open the Decoration Tray.. The Player can use each tab to customize the castle with unique wallpapers, colors, fabric and flooring to make each room feel like home. Simply drag a pattern from the options shown into the world and see your decorations take hold! Some patterns are limited in the locations where they can be applied: for example flooring can only be placed on floors, etc.