How to get the appearance of the RibbonForm in WinForms RibbonControlAdv?
RibbonForm
Add the Syncfusion.Windows.Forms.Tools namespace to application. The forms in the application by default will extend to the Form class. Programmatically change it as RibbonForm class.
C#
public partial class Form1 : Syncfusion.Windows.Forms.Tools.RibbonForm
VB
Public Partial Class Form1 Inherits Syncfusion.Windows.Forms.Tools.RibbonForm End Class
Reference link: https://help.syncfusion.com/windowsforms/ribbon/getting-started#configure-ribbonform