Hello Jaroslav Bucek,
Thank you for the question.
It is possible to set a theme to one control, when another theme is set by ApplicationThemeName
. In order to do that, you should make an object of type StyleBuilder, and then call the BuildStyle method, passing the RootElement of the desired control. I have demonstrated the approach in the sample project attached.
If you have additional questions, feel free to contact me.
All the best,
the Telerik team
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