Android 4.3 is now properly passing stream and track metadata via Bluetooth to connected devices. Just Playlist now supports this, as well.
If the device has a display and can handle this metadata, it will be shown. For instance, car stereos with a display and support for the metadata will show track, artist, and album information.
I also am now detecting the actual width and height of the device display and using this to set the artwork size for display. This should mean that any phone or tablet will give the best possible view of album artwork.
The last change I’m making is that, starting with this version of Just Playlists, new features will only be rolled out for devices running Android versions 4.0 and above. Older devices will still be able to run version 5.2.5 of Just Playlists. I don’t like to do this, but there are so many new features only available for the newest versions of Android that it is making it difficult to maintain backward compatibility when I only have a limited amount of time to devote to program development.