TJREBezelBtn is a push-on, push-off button with separate captions and bezel
colours in the two states.

TJREBezelBtn inherits from TCustomPanel. It publishes most of the the usual
button properties and events plus OnChange, but cannot be hot-keyed. The colour
of the button face can be independently set. It can receive focus by being
tabbed to or with the SetFocus method but does not acquire focus when clicked.
Bezel depth and width can be set using BevelWidth and BorderWidth properties.

The sequence of events at mouse-up is:
  
  OnClick
  <toggle of Pressed property, change of caption and bezel colour>
  OnChange
  OnMouseUp

Therefore the new button state will not be correctly recovered during OnClick.
Only OnChange will be triggered by keyboard operation.