Currently if a application sets a Pixbuf as icon on a Gio.Notification object, it depends on if the org.gtk.Notification is available or not if the icon makes it through. (org.gtk.Notification supports pixbuf icons)
The FDO backend simply ignores a pixbuf and does not pass it on.
It looks trivial from the code to support Pixbuf because its exactly what the G_IS_BYTES_ICON does, minus loading the bytes into a pixbuf.
Currently if a application sets a Pixbuf as icon on a Gio.Notification object, it depends on if the org.gtk.Notification is available or not if the icon makes it through. (org.gtk.Notification supports pixbuf icons)
The FDO backend simply ignores a pixbuf and does not pass it on.
It looks trivial from the code to support Pixbuf because its exactly what the G_IS_BYTES_ICON does, minus loading the bytes into a pixbuf.