# note: The six reserved bits of the ANMF flag byte all set.
# expect: reject
# anim: ok
# info: ok
# exercises: The byte after the duration holds six reserved bits above the
#   blending and disposal ones. Both readers take it with a mask -- bits & 1
#   and bits & 2 -- so the rest is dropped rather than refused, and the
#   frame composes as if the byte were zero.
frame
frame_duration 100
frame_reserved 63
lossless
width 16
height 16
argb 0xff800000 x256