Completed
Last Updated: 07 Oct 2019 13:39 by ADMIN
Release R3 2019 SP1

The FulentDarkTheme sets a transparent background which results in a slow resizing. 

Workaround:

this.TabbedFormControl.RootElement.BackColor = Color.Black;

Completed
Last Updated: 22 Jul 2019 13:27 by ADMIN
Release R3 2019 (LIB 2019.2.729)
Please refer to the attached gif file. You will notice that the help button's style is different