https://imgur.com/a/yiBsk4R

Edit: updated imgur link, It's just the low resolution sprites.

This is probably a derp on my part when I created the low res versions.

It's on my list of things to do to give the loaders and beltboxes a facelift for Factorio 1.0, but no promises. If that happens, there will likely be no low resolution version, because it's a pain in the arse to make two versions of everything.

No worries. I just recently upgraded my computer, so no more low-res sprites for me anyway ;)

Can't you make the high res version, and then downscale it?