Idea: remember previous zoom setting when generating the next barcode

[travelalpaca]

Currently, each barcode I generate takes up the full screen, which is nearly always too big for my scanners, so then I manually shrink it down using pinch gesture to scan.

I think a better design would be to simply store the zoom level, and then when generating a barcode automatically view it at the previously used zoom setting.

A simpler solution might be to have a preference selection where the user can set it to default to fullscreen, or to minimum zoom.