I have a question. Umm, how'd you get the thumbnail to not be the picture/animation? *bricked* I have a comic, and it's huge, and I wanna put a different thumbnail.
It only works when you're trying to upload certain files, like SWF (Flash), or overly large GIF images, and most of those files are disallowed in your average gallery categories. A long time ago they used to allow Preview images for any type of file, but people were abusing it by posting dirty pictures under innocent previews, so dA removed it.
I already spazzed over this in my reply to your PM, but I have to comment here to say again how awesome it is! 8DDD Thank you so much, Komori--this was a fantastic birthday present!