Dim open page when viewing tab stack?
I recently moved from Pale Moon to Vivaldi and am so far very pleased with it. It is much snappier and I have grown to really like the tab stacking. The only slight irritation I have found is that the screen looks rather messy when I have a large tab stack moused over to show thumbnails over the top of an often already messy page. I currently resolve this by having a pinned Blank Page which I open before mousing over the stack, but I wonder if it might be possible to make the open page dim right down when mousing over a tab/stack showing thumbnails?