Once in a while I have this issue where some images open in a painful white background instead of the nice for the eyes dark gray... It's awful to deal with... And then sometimes I enter the same image again after reloading the page (not always work) and the background for the same picture is back to the normal dark gray... I have not a clue on what is causing the awful white backgrounds to happen randomly. Follow 2 examples, the awful white one and the nice black one.