@DavideMaggi Thanks for your reply. I remember, that a train had a special livery, view my picture https://trainspo.com/photo/82385/ The new Coradia Stream are called ‚pop‘? At the InnoTrans 2018 in Berlin, I already could inspect the 'pop' EMU ETR 103 001.
@bfsSwiss There was 6 trains with the special livery, for Regional trains Colico-Chiavenna and Sondrio-Tirano, but in the last years they had been put out of service and sent to scrapping yard, the ALe.582 EMUs. still in service are in normal livery.
Yes, the new coradia stream trains are called Pop but only the ones owned by Trenitalia