Hi Stargazer,
Thank you for contacting us.
We are agree that it will be useful feature if this could be set through the theme. Current version does not support this but we will add it in some of the next release. Currently, you could use the code provided in previous message to implement such of behavior.
If you have other questions, do not hesitate to contact me again.
Kind regards,
Martin Vasilev
the Telerik team
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