HP BB118BV - StorageWorks Data Protector Express Package User Manual page 266

Data Protector Express uses the following to identify selected objects for all job types:
The box is checked for each selected object.
•
The box is shaded for each container (folder, volume, machine and network) that has one or more
•
selected objects.
If you select a container, all objects within that container are selected. If you add new objects to a marked
container, those objects will also be selected when the job is run.
If a container is both unmarked and not gray, it contains no selected objects and it is not itself selected.