... regardless of size, style, or color. But, I don't think it matters all that much to them, to be able to see it ... they either cannot understand it, or think it's part of the body of your bait. Or else they're too interested in your bait to give a hoot :p
I started with jigheads in 1/32 & 1/16oz with #4 hooks ... never had a problem with them, and still use them sometimes. Mostly, nowadays, I use the same weight jigheads ... but with a #2 hook. Haven't seen any major difference in bites, hookups, or action of the bait. Biggest difference for me is the ability to use a bigger/thicker bodied plastic ... and still have a good amount of gap between the hook point & plastic body.
I've caught fish on jigs with red hooks, black hooks, bronze hooks, & gold hooks ... never really noticed any major preference for any particular hook color, by the fish anyway :p
Fish can probably feel the hook, when they bite down on it ... but they may just think it's the spines of the "minnow" they just bit on :p But, don't worry too much about that ... just set the hook at the first sign of a hit, and you'll hook up with your share. That's the reason I like casting a jig so much ... every hit transmits a "jump" in the line. That's what I'm watching for !! I prefer to not "feel" the bite, just "see" the bite ... because I know that, if I can feel him ... he can feel me (and might be prone to spitting it out faster). I don't like to give them that opportunity. I like to "surprise" them ... with a fast hookset
About 90% of the time .. that hook is embedded in the roof of their mouth, and most any size hook will hold them when it's stuck there !!
... luck2ya ... cp