When using the RadToggleSwitchButton and the CheckedContent and UncheckedContent properties are not utilized, in some themes, the on and off states cannot be correctly distinguished. For example, the track or the thumb does not indicate whether the button is checked or not.

Themes, in which this is present are the following ones:

• Material
  
• Office2013
  
• Windows8 and Windows8Touch
  
• OfficeBlack, OfficeBlue, and OfficeSilver