FR: Allow for taskbar/dock. So as not to clip the bottom off disks

[cheeseandjamsandwich]

Aesthetic nice-to-have:
When set to a full disk image, the very bottom of the disk is clipped off by Windows' taskbar.
Could we have an option to pad the bottom of the disk's image with black space such that the disk displays fully visible?

This could work for both Windows' taskbar and I guess macOS' dock.