Stopped the software with a theme from which a sound has been disabled. Restarted, but no last theme (or default theme) offered to play. Remembering settings means it should reopen the session in the same state it left it.
When sarting/stopping a sound theme within a theme, changing for another theme makes a message confirmation box appears asking to save the theme. When I try the theme, I generally do not modify it, just temprarily preventing a sound from being...
When I'm listening to the jungle, for instance, I would appreciate to have from time to time the sound of a jaguar. Or if I want a stormy day, the noise of a lightning, but not always. Also, the timeline would allow to set up time intervals...