Green filename in Raster Manager

Does anyone know the significance of the green filename in Raster Manager? I haven't found any reference to it in the help or here.

I think I've seen this occur occasionally after fixing a broken filename (red), but I'm not positive. It's not a new phenomenon.

Ustn CONNECT 16, Descartes, OpenRoads/OpenBuildings, ProjectWise CONNECT 3.2