"Open" dialog confuses users

Sometimes starting StitchBuddy causes confusions: The "Open" window looks very similar to one of Mac OS X's Finder (which is true for a lot of applications using this standard dialog). So some users tried to navigate to the application again, and found its icon grayed out (as StitchBuddy can't open its own program file).

The solution is quite simple: StitchBuddy is already running, so just navigate to any supported embroidery file and open it.

Because some users faced the same confusion, I decided to add a related answer to this "Frequently Asked Question", which might help others facing the same situation.