one way to fake this is to put a boolean indicator (a flat led for example) behind the button and make this indicator slightly larger than the button. When needed set this indicator to have properties as visible and blinking else set the visibility to false.
If you set the background color of the boolean text, it will stay that color even if you change the color of the button. Therefore, you can set the background color of the boolean text on the button and then change the color of the button in order to do what I think you are looking for.
