Can someone remind me what the subtle gray hashes on a wire mean?

[blackburnite]

LV sometimes puts these on a wire when you save a VI but I don't remember what it's supposed to indicate.  I can't post an image because my dev PC is air-gapped but they look like subtle grey slashes or little slanted diamonds overlaid on the wire.

Is that a "this wire is connected to a constant" indication?

Yep, never mind, hashmark setting in LV options.

[crossrulz]

For everybody else, this is a feature called "Constant Folding".  It is a way to see what parts of code will be compiled into a constant.