Hi Guilherme,
Sorry for the delay in getting back to you.
You can able
to customize docking indicator using the BottomDragProvider, LeftDragProvider,
RightDragProvider, TopDragProvider and CenterDragProvider properties. Please
refer the documentation link for your reference
https://help.syncfusion.com/wpf/docking/styling-and-templates#drag-provider-style
Please refer
the attached sample for your reference.
If we
misunderstood your query, please provide more information about your requirement
so that we can prompt the solution further.
Regards,
Gokul T.
Attachment:
DockingManager_360e6ced.zip