Technic 854 Go Kart

[Philippe Hurbain]

I think that's a rendering artifact. Based on how LDView works (even though I think this picture came from LDCad), I know that edge lines need to be pulled toward the camera when they are drawn, or they won't show up properly. I suspect that the edge lines have been pulled forward a little too much, and it is causing them to bleed through the opaque sticker.

Yes, it occurs whenever edge lines are "too close" of external surface. Sometimes it can even be seen on regular parts when unzoomed enough, see for example this panel preview: https://www.ldraw.org/parts/official-par...rtid=62531