abstract aged background board color coloration colors colour colours cracked cracks damage damaged dark decay deteriorating disused dry-wood grained grains green grunge grungy hue hues lines old rough rustic scratches split splitting surface surfaces surfacing texture textured textures timber tones variation variations vintage wallpaper weathered wood wood-grains wooden worn ancient balcony brick decline declining degenerate deterioting grunge balcony iron neglect neglected rail railing shutters slum Venice wall