title: can I change background image of Barcode Scanner viewfinder?
body: <p>In my app, I managed to send intent to Barcode Scanner app and get result. </p>
  
  <p>My problem is: After sent intent, Barcode Scanner activates and shows rectangle view finder in center and message "Place a barcode inside the viewfinder rectangle to scan it.". At this stage, I want to show custom background image which has some pictures around remaining center rectangle area transparent for view finder. Has anyone accomplished this?</p>