# note: A color cache declared inside the predictor transform's sub-image, 1
#   bit.
# expect: ok
# exercises: DecodeImageStream() reads the cache flag at every level, so a
#   sub-image may carry one of its own. cwebp never writes one there.
#   Verified to decode to the same pixels as the same transform without it.
lossless
width 16
height 4
transforms predictor
predictor_tiles 2 2 2 2
subimage_cache_bits predictor 1