From Tiled 1.3 on there’s a native notification that’s easier for me to maintain, but it will no longer automatically download & install a new version.
Hmm, that’s a rather tricky problem indeed. The customizeable anchor is an interesting suggestion that could definitely be implemented. Indeed I imagine such a setting could also be interesting even if no random variations are involved.
In the meantime I guess I would suggest to only add variations that are the same size.