Based on the screenshot that you attached I cannot determine the reason for the undesired appearance. One possible reason for the gaps between the buttons might be a Margin
which you have set to the buttons. Please check whether there are margin settings serialized for each button and in case so, change them accordingly so that the buttons are positioned correctly. Another possible reason could be the images that you are using. Please check whether the images are cut correctly and have appropriate sizes.
I hope this helps.
the Telerik team
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