[ CCode ( cname = "GDATA_CATEGORY_SCHEMA_LABELS" ) ]
[ Version ( since = "0.11.0" ) ]
public const string CATEGORY_SCHEMA_LABELS
A schema for categories which label the entry they're applied to in some way, such as starring it.
The semantics of the various labels (such as GDATA_CATEGORY_SCHEMA_LABELS_STARRED) are service-specific.