alert appreciated appropriate-behavior appropriate-behaviour area black cigarettes communicating communication danger direction environment health health-risk no-smoking not-allowed not-permitted permission-denied pollution prohibited prohibition red sign symbols thanks unhealthy warning white black-&-white gray grey greyscale attention banned blue boundaries boundary directive distance distinctive entrance limits location painted shopping-center shopping-centre symbol wording words penalties penalty thick thin addiction aged ancient antique backdrop background brown caution damaged decoration decorative forbid forbidden free grime grimy grunge grungy icon image isolated nicotine no old page paper parchment pictogram pictograph picture resource sepia sheet signage smoke smoking somadjinn square stock symbolic texture textured tobacco vintage worn yellow 3-D eye-catching glassy plastic raised style surface surfaces surfacing tactile textures Australian bacon Bar-B-Q barbecue barbie boil cooked curry eggs filled turnovers fire food meat mince onions Pancakes patties raw satay satay sticks sausages savory sauce savoury sauce simmer smoking bacon sunny side up tasty the barbie well cooked well-done air air con Alley alleyway back cigarette city conditioning crack decay Dirt dirty door fag fags filth filthy fishmonk graffiti here India litter machine mess message order peel peeling place poor poverty Singapore slum spoil spoilt spray street urban writing lettering semi-transparent surfaced Air Vehicle airplane Announcement Message Architecture And Buildings Beauty And Health buckle Business Travel cabin ceiling Color Image Commercial Airplane Exclusion Inside Of jet Lighting Equipment Low Angle View macro Mode of Transport no people no smoking sign Objects/Equipment photography risk safety Seat Belt security transportation travel Vehicle Interior Vehicle Seat warning sign Warning Symbol ash hot