Paint paint = new Paint();
paint.setColor(Color.RED);
paint.setTextSize(20);
String s = "FacePreview - This side up.";
float textWidth = paint.measureText(s);
canvas.drawText(s, (getWidth()-textWidth)/2, 20, paint);
if (faces != null) {
paint.setStrokeWidth(2);
paint.setStyle(Paint.Style.STROKE);