CB12

#Natural phenomena #Quadrilaterals #Letters or numerals forming geometrical figures, written or typographical matter in perspective #Letters presenting a special form of writing #Numerals presenting a special form of writing #Colours #Luminous sources, rays, shafts of light #Quadrilaterals containing one or more letters #Letters or numerals forming a square or a rectangle (surface or periphery) #Letters in light-coloured characters on a dark background #Numerals in light-coloured characters on a dark background #Two predominant colours