modern contemporary library building do not change proportions or building height preserve all windows and structural grid entry with dark accent frame improve the fa ade design to make it bold and expressive materials upper floors light mineral plaster or light concrete panels warm white light sand tone deep dark graphite window reveals to create shadow depth one volume accent in dark matte metal or vertical bronze aluminum fins ground floor transparent full height glass add subtle roof edge led lighting recessed entrance with darker framing architectural shadow lines between floors elegant fa ade rhythm no wood cladding no red panels no extra floors atmosphere overcast nordic daylight or after rain reflective pavement cinematic but realistic high end architectural visualization soft shadows sharp details