I have a file I keep trying to upload. It is a gif. Whenever I look at the file, it looks fine and has no full black/full white issues. When I made the background all the same color red and click "set transparency" it doesn't change it. The entire background remains red. When I make the entire background transparent, it looks fine in any viewer (even the Graal depot customs viewer) but when I upload it to Graal it shows a preview of a seriously messed up looking image, turning some of my colors green and overlapping some of my animated effects. Also gives the background a big square flashing different colors that never even existed. Any ideas? Thanks  

Gif images must be made transparent. Clicking the 'set transparency' is specifically for .png and will not change the background of a gif.