Indeed, but we (I/Felix) decided that we'll support all solutions (more than in that poll!)
At the moment we have the following solutions implemented:
(The way the files look)
Single file / single picture (uses background highlighting)
Single file / multiple pictures
Multiple files / pictures
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Single file (+definition file) / multiple pictures
-> compound (example image by Garry Newman for his own GUI)
Single file / "unlimited pictures"
-> Uses the *.lgpackage that can be created via the editor (maybe with a standalone tool also later) that is basically a password protected zip, that will be unpacked into the buffer(ram).
That are the solutions we have thought of (+Joozey's) that we already implemented - if you got other ideas, we'd like to hear them!