Streaming Indicator

Feature description:

On the Now Playing screen have an indicator that the music is being streamed from an online source or local cache.

Problem solved:

There is no way to easily verify the source of a track while it is playing.

Brought benefits:

Gives visibility into how the app is using my data, a visual confirmation that my files are cached as I am expecting.

Other application solutions:

 
My podcast app (tangentially related use case) has an indicator for each file and shows if it has been downloaded or will be streamed, but I don’t have a solid example from a music player app.
 

Additional description and context:

 
Currently the only way I can tell if a track is streaming or locally cached is by checking the “Codec and bitrate/quality” string which appears to not include the bitrate when a track is streaming. (Understandable if the bitrate is calculated from file size and length which may not be available while streaming.) This may not be accurate, so a confirmed indicator would be nice. It can be an icon on the cover or string, it doesn’t matter.
 

Screenshots / Mockup:

    

I can add a template value for the offline status, but that’s irrelevant to know from where the file is played.

You can have enabled the prefer server version on wifi, if you use playback cache it can play half from the cache half from the server, and many other cases.