Born in Barcelona in 1945, Peret is a multi-talented artist: graphic design, illustration, photography, sculpture? At the beginning of the 1980s, he founded a studio with international collaborators and carries out projects all over the world. The Spanish graphic designer was chosen by the locals after a competition to dress the tramway and design the interior harmonies. His proposal combines a warm, fiery yellow with red and black graphic motifs, specific to each of the 27 trams and divided into three families. The interior is clad in grey, with red and yellow accents, and the seats are upholstered in a fabric that echoes the graphic motifs on the outside. The Peret design was created for the buses of the Solea network.