Hi DesuDeus,

> The icons are vectors but they're on a 64 pixel grid (that means they downscale perfectly)

Vectors by their nature just inherently do not downscale perfectly - it's because things like the stroke width do not stay exactly proportional to everything else when they are rendered at a small size.

It's just part of the nature of how vector drawings work that downscaling to a small size is problematic. Just basing them on a 64 pixel grid does not really change that...

The problem is not so apparent with very sparse lightweight drawings, it gets much worse when the icon becomes more complicated.

- Michael