

A yellow taxi cab waits at a busy city intersection, with a bus and two more cabs behind it and tall glass buildings rising on both sides. The code is a large white slab floating above the street, its dark swirled blobs forming the finder squares and the data modules against pale cracked panels. The strong black on white contrast keeps the pattern clear even with the busy street below. Pink and yellow shop signs and the warm taxi tones add color around the block.