Naur and Lars Klint were already involved early in the design phase to ensure uniform symbols and graphical aids.
Fx drawing heads, sticker sheets with standard drawing components, such as whole toilets, colour separations of advisory work, etc.
Subsequently, the task was transferred to Klint's studio, which was responsible for the actual planning and implementation of the entire signage system, everything from outdoor signage over the main signage and summary tables to doors, technical signs and room numbering.
The work went on for more than 10 years and focused on the practical use of the signs, their function of directing and informing, as well as,
the signs as artistic decorations.
Therefore, more than 10 colours are being used, all mixed to the same value. Where the signs are of a more internal character, different values of the same colour are often used as background and text, sometimes also with a different gloss. Even uncommon colour combinations such as green text on a blue background etc.