Flexible user interface for multi-zone device

A multi-zone device comprising:

• one or more network interfaces;
• a set of audio outputs comprising at least a first audio output and a second audio output;
• a user interface comprising a set of regions, the set of regions comprising at least a first region corresponding to the first audio output and a second region corresponding to the second audio output;
• at least one processor;
• and
• at least one non-transitory computer-readable medium comprising program instructions that are executable by the at least one processor such that the multi-zone device is configured to:
• receive, via the one or more network interfaces, data corresponding to a playback zone configuration indicating one or more playback zones to be implemented via the multi-zone playback device, wherein each playback zone is associated with respective one or more audio outputs in the set of audio outputs;
• and
• based on the data corresponding to the playback zone configuration, update, with one or more visual indications, the appearance of one or more regions in the set of regions, the one or more regions corresponding to the respective one or more audio outputs associated with the one or more playback zones, so that the user interface reflects the playback zone configuration;
• wherein:
• when the data corresponding to the playback zone configuration indicates one or more of:
• (i) a first playback zone associated with the first audio output or (ii) a second playback zone associated with the second audio output:
• updating the appearance of the one or more regions comprises one or more of:
• (i) updating, with a first visual indication, the appearance of the first region corresponding to the first audio output;
• or (ii) updating, with a second visual indication, the appearance of the second region corresponding to the second audio output;
• wherein the first visual indication is different from the second visual indication;
• and
• when the data corresponding to the playback zone configuration indicates a playback zone associated with both the first audio output and the second audio output:
• updating the appearance of the one or more regions comprises updating, with a third visual indication, the appearance of both the first region corresponding to the first audio output and the second region corresponding to the second audio output, wherein the third visual indication is the same for both the first region and the second region.