Hi Xavier Reyes,
Thank you for contacting Syncfusion support.
We have checked your query "How to change TabBar Height on TabBarSplitterControl". In TabBarSplitterControl, we have set the Height of TabBar based on the SystemInformation.HorizontalScrollBarHeight. But we can change the height of TabBar by setting SizeFactor property of TabBarSplitterControl. We will update the size of TabBar by multiplying the SystemInformation.HorizontalScrollBarHeight with SizeFactor. So we suggest you to use the SizeFactor based on your requirement. We have also prepared the sample to meet your requirement. Please download the same from the below.
Sample:
TabBarSplitterControl_Sample
Regards,
Subashini M.
