Icons are the resource sink of many development teams. 😀
Everybody has their own ideas what a good icon should be, their preferred style, color, flavor, emotional ring and what else. And LabVIEW actually has a fairly extensive icon library in the icon editor since many moons.
You can't find your preferred icon in there? Of course not, even if it had a few 10000 you would be bound to not find it, because:
1) Nothing in there suits your current mood
2) You can't find it among the whole forest of trees