Customize the appearance of the Gantt Timeline through its templates. They will enable you to add more details for the users and have full control over the rendering.
Available templates for the Timeline:
|TaskTemplate||Allows you to customize the rendering of the tasks in the Timeline.|
|TooltipTemplate||Allows you to customize the rendering of the ToolTip in the Timeline.|
|Date Header Templates||Allows you to customize the rendering of major and minor slot header for each view in the Timeline.|