Thank you for writing.
Indeed, you have to drag a theme component from your ToolBox to your form in order to use the theme of the componnent. I am pasing the link to the documentation article in question here in case there are others interested in the topic: http://www.telerik.com/help/winforms/themes-using-default-themes.html
Feel free to write back if you have more questions.
the Telerik team
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