Just a thought as I was wading through a number of images in portrait mode ...
An option to offset the display to either the left or the right - so that the histogram and EXIF windows do not cover the image. No need for pixel placing, just have the vertical axis at (say) x=1/3 or x=2/3 instead of x=1/2 screen width.
Of course, in landscape mode it would have no effect.
Pete