Ideas that are too old (too many things have changed since) and ones which won't be implemented for certain reasons or if there are obviously better suggestions.
I like the new Mac icon, but the factorio's gear alignment is a bit off the center and it looks odd to me.
I think it could be better if perfectly centered
This is a GOG issue, they manage all their own icons for their installations of the game,
So if you email them it will have a better chance of being fixed