To customize the appearance of the watermark content, you can assign the WatermarkContent property to a UI element and customize it as you wish. For example:
<telerik:RadWatermarkTextBox><telerik:RadWatermarkTextBox.WatermarkContent><TextBlockText="Enter text here"Foreground="Green"FontFamily="Italic"Opacity="0.5"/></telerik:RadWatermarkTextBox.WatermarkContent></telerik:RadWatermarkTextBox>
Regards,
Martin Ivanov
Progress Telerik
A brand new ThemeBuilder course was just added to the Virtual Classroom. The training course was designed to help you get started with ThemeBuilder for styling Telerik and Kendo UI components for your applications. You can check it out at https://learn.telerik.com