Regardless of if it is better or not to have the yellow outline, this addons works.

Download if you want what it gives.

Simple

Nice work.

I totally don't get why you would want to remove the visual clue as to what is a quest item. It makes sorting your bags, and selling items far faster because you don't even have to look at those yellowish items. You know immediately that you don't want to sell them.

I might could understand if it was some sort of eye-boggling neon yellow or something, but it is very tasteful and subdued and I have found it to be an update that I appreciate a lot.

Sorry, but I totally don't get it.

Why wouldn't you want the yellow quest item highlight? It's there to help you find quest items. I think using this would just hinder players, not help.