this is probably not the most urgent feature request:
I am often working with tons of open tabs in chrome and on my laptop screen this means the paperpile tabs get too small to see the title information even at high resolutions (like so):
If the otherwise empty space of the metapdf titlebar (which is always visible at the top of the page):
could show the author, year, paper title or something identifiable, I could occasionally save valuable seconds scrolling to the top of the paper or hovering over the tab and feel more productive in the process.