Fix background of first frame when it's not black
tree88b44653288f02d94676492c3dafed5d6ddb68cc
-rw-r--r-- 10 .gitignore
-rw-r--r-- 8411 README
-rw-r--r-- 3557 example.c
-rw-r--r-- 12857 gifdec.c
-rw-r--r-- 1081 gifdec.h