>>297423949
protip for vroid transparent eyelines. Once you get them in-game because they're a cutout or transparent texture, unity will be tend to make them appear relatively thinner at a distance. You'll lose detail or they'll be completely invisible at distances when you should still be able to distinguish the outline of the eye. Something to do with the mipmapping of tranparent stuff I think. 

It means don't be afraid to make them a bit thicker while you're working on it. You can always thin them back out by adjusting the alpha cutoff in your shader once you get it into unity.