I acknowledge the lines issue. When I was putting them together, I used a 10mm line width (on a space of ~200x200). Shrinking down some of the icons for inclusion as sub-icons, even just to half, reduced that to 5mm, which is the problem you see. And, frankly, when I started I thought the 10mm lines were going to be too thick!
I'll prioritize fixing those too-small parts for a future update.
I acknowledge the lines issue. When I was putting them together, I used a 10mm line width (on a space of ~200x200). Shrinking down some of the icons for inclusion as sub-icons, even just to half, reduced that to 5mm, which is the problem you see. And, frankly, when I started I thought the 10mm lines were going to be too thick!
I'll prioritize fixing those too-small parts for a future update.