Thank you for writing.
Indeed, in order to apply the form's theme to all the controls at design time, you can right-click the form and select the "Apply current form's theme to controls.
" option. Please refer to the attached screenshot.
I hope this information helps. Should you have further questions I would be glad to help.
Telerik by Progress
Check out the Windows Forms project converter, which aids the conversion process from standard Windows Forms applications written in C# or VB to Telerik UI for WinForms.For more information check out this blog post
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