The overlay icon represents a small badge over the application icon which is suitable for indicating any status changes. It can be specified by setting the OverlayIcon property.
To ensure that the overlay icon will be always clearly visible, it is recommended to use images with a solid background and may be a border.
During the application's execution, the status may change so different Bitmap can be assigned to the OverlayIcon property. Setting the property to null will clear the Overlay Icon.