jQuery TreeMap - group.hoverStyle
When the user pauses on a group, this element responds by changing its style. Using the fields of the hoverStyle object, you can specify the color of group headers and appearance of group borders in the hover state.
When a group changes its style, the tiles belonging to that group also change their style. To specify the style of the tiles, use the tile.hoverStyle object.
- hoverEnabled - enables/disables the hover feature.
Default Value: undefined