board boards carpet corridor free hotel information lobby office Rooms sign space windows advice alert appropriate-behavior appropriate-behaviour awareness birds black care communicating communication concern danger denied directions inform informing not-allowed not-permitted park permission-denied please polite prohibited prohibition prohibitions protecting protection public-park warning warning-sign water-birds water-fowl weathered weathering wildlife background border design graphic groningen infinite infinity landscape token vector white deck floor math number numbers old ship twelve wood wooden writing written advertisement banner cutout isolated promote shield signage tablet yellow yellowboard deep keep letters out prohibit signpost warn water Australia buildings clock doors entrance Fremantle gates historic jail prison signs towers walls abstract centre circle colour convergent oval pictogram ring shape shine symbol target