The architect's plan called for offices filling the floor plate from the left, one bay at a time. By the fourth revision every bay was designated office space. Then the client changed the brief: the rightmost bay, the one added last and with the fewest structural commitments, was to become a server room instead. Same footprint, different function. The architect recolored that column on the plan from blue to red. The rest stayed blue. The final revision restored all bays to the same designation.