That is the RasPi port of Plex Home Theater -- the previous player which is no longer being developed.
"Is Plex Home Theater still around? Plex Home Theater is still available and open source. We’re no longer actively developing it and are focusing our efforts on making Plex Media Player the best experience possible. (We’ll continue to make bug fixes for PHT for now.)"
"Is Plex Home Theater still around? Plex Home Theater is still available and open source. We’re no longer actively developing it and are focusing our efforts on making Plex Media Player the best experience possible. (We’ll continue to make bug fixes for PHT for now.)"