Alternative window thumbnails options for saving pixels
(I hope you understand my english)
I think that the current window thumbnails are too big for some works, where the focus will be in the image that is being edited and not in the GUI. Every pixel saved is beneficial.
My idea is it, to have 4 modes for display thumbnails: 1-Big thumbnails, (current) 2-mini thumbnails, (for saving pixels) 3-mini thumbnails + label, (for saving pixels) 4-only labels. (for more saving pixels)
A very small thumbnail is enough to recognize quickly a file.