Grafx is available from the downloads section of the org,
shogun files / tools

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i have not tried editng in photoshop, it is not a package that i use.

the lbm is an ancient format, that was way ahead of it's time, and in some ways is still unique.
I would imagine that any pure PC/windows based graphic editing software may cause similar errors to the ones Giskard is having.

MSpaint was developed when windows was nothing more than a dos shell, does anyone else remember windows 2.0?
- and yes i know windows it STILL a dos shell, MS just "hide" it a little better now...