I've noticed that when you use custom color to highligt the text in Track Information panel and check split multi-value tags into rows, only the first value is highlighted.
I have also 2 sugestions:
1. The option to display in Now Playing tab aside Artist Biography another field like "comment". The idea is that songs have a history or comments you might add and would be nice to display that for each track.
2. Enable "Paste Artwork" to "All Artists" tab in Left Main Panel