Would it be possible to add a function that will highlight under/overexposed pixels (e.g. display pixels that are fully black (0,0,0) in blue, and pixels that are fully white (255,255,255) in red? Would be fine to toggle this feature on/off together with the histogram (if not adding a separate key).
I love JPEGView because its unbloated design, small footprint and high speed - this little extra feature would be helpful for pre-screening series of pictures with slightly different exposure (I have often such exposure series).
Thanks a lot for this great tool,