GTK File Chooser Dialog gets a thumbnail view after 18 years
I wonder where this trend - fortunately a limited one - with putting confirm buttons at the top comes from?  Humans naturally read from top to bottom.  It naturally follows that the final action in any UI should be at the bottom.<p>I find these buttons at the top extremely confusing, as I often - from my experience with reading - after I've dealt with the subject at hand (in this case, picking a file), assume the natural place to confirm my choice would be after it (i.e. below it).<p>What are the UX arguments for placing the confirm buttons at the top of a dialog?