It would be really nice if Graal could suport APNG (Animated PNG files).
They aren't that popular yet, but there are several editing programs for them.
Read about them here:
http://en.wikipedia.org/wiki/APNG (I'm providing this link to educate users on what an APNG is, so please don't delete it
)
APNG would be better than animated GIFs for animation because it supports more than 256 colors.
Wondering if anyone else would like to see this implemented?