gnome and picture
 

when I update slackware box to current version with swaret, gthumb can't see picture.At first, I think that gthumb has wrong, I reinstall it,but problem still exists. yesterday, I want to add a icon to gnome and find that gnome can't see all kinds of icon file. So I think that gnome or gtk has problem to see picturre.

Which library support graphic under gnome or gtk?