WinForm: RadTreeView for office2019Dark theme is not working.

Hello Igo,

Thank you for bringing up this issue to our attention. After a further investigation, I found out that it is a regression introduced in Telerik UI for WinForms - R2 2021 SP1 (2021.2.615).

I have logged it in our feedback portal by creating a public thread on your behalf. You can track its progress, subscribe for status changes and add your comments on the following link - feedback item.

I have also updated your Telerik points.

The reason for this unexpected behavior is the FullRowSelect functionality. As a workaround, you can disable it and your radTreeView will work as expected with the Office2019Dark theme. 

this.radTreeView1.FullRowSelect = false;

I hope you find this information useful.

Regards,
Dimitar
Progress Telerik