Prior offer of help or no, thank you very much for taking the time to try.
'> It works! You've got the answer right there, only it's the other way around:
Turns out GIMP needs the white in the skin layer for it to work. I don't know why, I don't know how, but leaving the skin layer blank (as would, I take it, have been appropriate in Photoshop) is what caused it all.
...
So! Yep. As usual, I was doing something stupid and completely elementary wrong. But now I can produce working inventory icons for clothing parts! Wooo!!
@OldTimeRadio
I'm putting up a big [SOLVED] sign in the thread title; hope the message reaches you before trying to help here costs you any precious, limited and irredeemable life-time. Thank you again, anyway!
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