Could you explain what exactly you do not like in the styling of the scrollbars? Is that a particular skin or something general?
You can avoid the decoration of the scrollbars through ControlsToSkip property of RadFormDecorator:
or create your own skin following the approach in this
You may also find useful this
forum thread explaining how to set custom colors to the horizontal/vertical scrollbars through CSS and why scrollbars are not decorated across all browsers.
All the best,
the Telerik team
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