Some additional observations.
Artwork
Apparently some music services (like Sonos Radio) provide multiple album artworks. See the below example. The official app shows the artwork specific to the track being played; your app shows the artwork of the radio station. Perhaps it is possible to add a setting in your app to have the user set which of the two should be displayed?
Flowcards
I did a comparison of available flowcards between the official app and yours. Regarding the THEN cards I noted some differences (based on my Sonos Playbar). The following cards are not available in your app:
| Flowcard (in Dutch) | |
|---|---|
| Zeg (Tekst) op volume (Volume) | |
| Speel geluid (Geluid) op volume (Volume) | |
| Speel de (Afspeellijst) afspeellijst | |
| Speel URL (URL) op volume (Volume) | |
| Speel Soundboard geluid (Geluid) op volume (Volume) | |
| Stel bron in op TV | |
| Zet groepsvolume naar (Bereik) |
Especially the latter two cards are relevant (in my case) (a) in order to set the source of my Playbar to the optical input to which the TV is connected and (b) to set the group volume for all grouped players at once, instead of setting the volume per player. Maybe other users also use the other cards.
