The unique project, which introduces a color identification system for the color-blind, was presented from 9 September to 11 November 2009 as part of the EXPERIMENTADESIGN 2009 at the metro station Baixa-Chiado in Lisbon.

The project was realized using the architectural systems pon and pon flex. The innovative development of the system family, pon flex, frees architecture from the orthogonal principle and opens up infinite possibilities for architectural design.