What is up with the folder icons looking like trash on High Sierra?

This is from Sierra

This is from High Sierra. Notice the bad pixels around the edges that are supposed to blend into the background, but instead they stick out as light colored?
How did they screw that up? They shouldn't have even changed.
EDIT: Same thing happens when using 32x32 icons.

This is from Sierra

This is from High Sierra. Notice the bad pixels around the edges that are supposed to blend into the background, but instead they stick out as light colored?
How did they screw that up? They shouldn't have even changed.
EDIT: Same thing happens when using 32x32 icons.