Hello,
By design, the application menu in
RadRibbonBar has a
RadImageShape applied for the different elements states to the RibbonBarElement.ApplicationButtonElement.ActionButton.ButtonFillElement.
BackgroundShape property. Thus, the image shape is blue for the normal state and orange for the
MouseOver state. You can open the theme in
Visual Style Builder and customize the theme according to your requirement with the desired colored shapes for the different states.
Alternatively, you can handle the
MouseEnter and
MouseLeave events of the RibbonBarElement.ApplicationButtonElement.
ActionButton and set its
BackgroundShape property using a custom image that you have. The result is illustrated in the attached gif file.
I hope this information helps. If you have any additional questions, please let me know.
Regards,
Dess
Progress Telerik