First of all, yes, I do have too much time on my hands. But there is a new "feature" of the Stats Display (CTRL-SHIFT-1) that bothers me...
This "feature" seems to have been introduced with the 1.6 upgrade. When you open the Stats, the Basic section shows the FPS large bar graph. I'm usually interested in just the number, and I don't want to waste valuable screen space, so I click on the bar graph to make it go away. Prior to 1.6, this worked. Now, when you click on the bar graph, the entire Basic section of the window closes. When I reopen the Basic section, the bar graph has indeed been closed, but this seems to be a bug, minor, to be sure, but annoying just the same.
I recognize that the development team has bigger fish to fry, but I've learned over the years that minor bugs often point to deeper problems. So, it might be worth checking this out to see if there are other underlying flaws in the code.