BYOND(341.877) ERROR: maximum number of unique atomic images exceeded (65535)!
I'm not actually using images for anything, though I am using a LOT of overlays. I created a number of prototype objects with overlays, then for each turf I offset the prototypes pixel_x and pixel_y vars, add one of the prototypes as an overlay and then reset its pixel_x and y.
Does each overlay with a different pixel_x or pixel_y value count as an image?
Try this out if you want to see for yourself: