I don't see the close button image on Scanner screen.

[ShahidIqbal452]

I have presented cardScanner ViewController, but it is not showing the close icon at top right corner. Maybe some issue with naming convention but I cant edit your package.

[Aecasorg]

There are 2 things that are needed to be fixed for the close button to work in this package.
1 - in the SharkCardScanViewController; on line 18, you need to replace $0.setBackgroundImage(UIImage(named: "rounded close"), for: .normal with:

$0.setBackgroundImage(UIImage(systemName: "xmark.circle"), for: .normal)
$0.tintColor = .white

It seems not being able to reach the existing image resource.

2 - In order for the view to dismiss, in the CameraPixelBufferStream on line 38, the sessions need be wrapped to run on the main thread:

DispatchQueue.main.async { [weak self] in
    guard let self = self else { return }
     if newValue {
         self.session.startRunning()
     } else {
         self.session.stopRunning()
    }

Otherwise it takes about 8-9 seconds for the view to be dismissed after you have tapped the close button.