Quoted from FlippyD:I've noticed that photos are desaturated in dark mode until you click on them. Is this a bug? It seems like it is but maybe there's a reason for it? Also this is in Safari iOS, haven't tested on a computer yet.
Same thing running Chrome. Photos are shaded/desaturated until the cursor is over the photo, then the image is restored to full brightness. Seems like it could be a dark mode feature to help your eyes in low light.