code: protected void drawStroke(Canvas canvas) {
  		resetPaint();
  		getPaint().setStyle(Paint.Style.STROKE);
  		getPaint().setStrokeWidth(getStrokeWidth());
  		getPaint().setColor(getStrokeColor());
  		canvas.drawCircle(calculateCenterX(), calculateCenterY(), calculateCircleRadius(), getPaint());
  		LOGGER.trace("Drawn the Action Button stroke");
  	}
docs: Draws stroke around the main circle
  
  @param canvas canvas, on which circle is to be drawn