Configures the group labels.
Each tile or the header of a group contains a text label identifying what this tile or group represents. You can change the font of group labels or their visibility using the fields of the group.label object. The same properties of tile labels can be changed using the tile.label object.
To customize a specific label, use the customize(options) method of the node to which the label belongs.
- labelField - specifies the data source field that provides texts for tile and group labels.
Changes the visibility of the group labels.