If i caught You well:
Actually You haven’t done it on the white example either.(it is just white on white, so you cannot see the rest of nautic star of compass).
To crop a graphic in ID just press V key on Your keyboard(or choose a black arrow in tools panel) than drag one of the corners like You do when You want to scale it.
Pretty siple innit? 😉
Next time utfg 😉 or ID help.
https://miroslavhora.eu
Prague – CZ
Apple MacBook Pro 17-Inch, PowerMac G5