Thank you Rotem, however none of those work.
Content[TrackDetail].Body.Default and Content[TrackDetail].ListAlternating.Default control the default and alternating colors of the banded rows.
Content[TrackDetail].ListAlternating.Disabled controls the default color of the banded rows when there is a missing track. However, there is no corresponding entry for the alternating color. That would be fine but for some reason, there are still two different colors for the songs which can be shown if you remove two songs in a row from their folder, causing MusicBee to report them as missing.