angles architectural-elements architecture building chinese coloring colors colouring colours decorated decorative deteriorating distinctive elements exterior exterior-shutters external faded fading functional glass louver-blades louvered louvers louvre-blades louvred louvres neglected old ornamental ornamentation painted perspectives plantation-shutters protection shade shelter sheltered shuttered shutters traditional window-coverings window-frames window-shutters windows angled architectural Asian blue closed façade fixture rectangle rectangular shape shaped shapes shut style surface surfaces symmetrical symmetry wood wooden above dated gray grey height high wall