I'd like to "reopen" this request as its implementation isn't exactly helpful. There are still 2 issues with the white border around new items.
1. all items with the same title, appear to be linked. So when I pick up 10 books that are actually all labeled as "book" in the inventory and then open one of them, all of them lose their "new" border and now look the same.
2. The border seems to disappear even if I don't open certain items. mouse-over or some other action seems to be making this feature less than desired.
A little could go a long way here. I'd add that quest documentation should probably have unique icons. I don't want to dumb things down, but this would drastically help when trying to figure out if the quest is bugged, or did I just sell something, or is on the ship....etc.