Welcome to the board, Bladesmith....

As wharfrat said, you can tie on a leader of mono if it makes you feel better. Or, if you use braided line, you can use a sharpie to color the last few feet of line black. Some say you shouldn't have to worry about it unless you're fishing in really really clear water. If you're fishing stained water, the fish won't notice.

Two things convinced me, though: The first (and most influential) was the fact that I've watched people with hi-vis line catch the crap out of fish with seemingly no effect. The second was a guide who once told me....in an average fish's life, they might've seen a line once or twice. Certainly not often enough for them to make an association. We use chartreuse baits...that doesn't seem to spook them, even though they don't look much like a natural food source.

Good enough for me, so I've been using it and likely will continue. And as I always remind myself...if I'm not catching fish, (which is a lot!) there are PLENTY of reasons to consider before looking at the color of my line.