Add a playback button on shortcut control
When the phone is locked, the shortcut controls allow the user to play, pause and skip forward but they do not allow to play or skip back some seconds. This would be extremely useful since lots of people listen to podcast while working and it is easy to miss some important information said. The buttom would allow to go back a few seconds without the need of unlocking the phone.
You can customize the player notification in the app Settings/Notifications/Player screen