alphabet letter D letter U sidewalk urban ABC brick capitalize character cube d dice die game learn letter play word a b blue c capital color E english f g green h letters pink red writing yellow 3-D advertising backdrop background blended bright center centre colour communicating communication design detailed details distinctive gold golden image inform information informing invitation lettering light lines medical medical-care medical-services opportune opportunity patients potential promotion promotional services sign style surface surgery texture textures variety various vibrancy vibrant words angled angles dental eye-catching glassy health italics location raised red-lettering surfacing tactile textured wallpaper welcome wording appearance coloration colored coloured demtal-care expressing expression identification indentifying indication informative notification notifying rounded semi-transparent shiny surfaced surfaces black font free grunge handpainted I illustration initial initiale j K keyboard keys L m n o p painted q qwerty qwertz r S serif set symbol symbols t U V w white x y Z cyan contrast decorative designed for-sale glass metallic patterned patterns perspectives plastic presentation promoting purchasable sale shaped shapes suggestive thick thin access advice availability colors colours convenience direction embossed embossing ladies-and-gents loo personal public public-convenience public-toilet rest-rooms sanitation script signs toilet toilets wc alert appropriate-behavior appropriate-behaviour area attention banned cigarettes danger directive environment health-risk no-smoking not-allowed not-permitted permission-denied pollution prohibited prohibition unhealthy warning