The QR code in system/about is a bit cumbersome. could it be made more "inconspicuous"? Wouldn't be a use for such QR codes in authentication? like another libs:security/secplugin? using an external app as google authenticator? The USER personal QR code could be seen in a new tab in system/accounts, scanned from there and a PIN set?

What exactly do you mean by ‘making it less conspicuous’?