Line 2 , also known by the names of its termini , currently ParalÂ lel - Pep Ventura , is a metro line in Barcelona operated by TMB , colored purple and sometimes simply called lÃ nia lila . Line 2 , also known by the names of its termini , currently ParalÂ lel â `` Pep Ventura , is a metro line in Barcelona operated by TMB , colored purple and sometimes simply called lÃ nia lila .