I assume that the described visual appearance has occurred on your side due to some specific settings you have applied because I am not aware of such problem in the standard configuration as you can see in this online demo
. In case the problem persists, please prepare a sample reproduction demo, open a new support ticket and send it to us along with detailed explanations and some screenshots. Once we are able to observe the particular problem on our side, we will do our best to help.
the Telerik team
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