This was added in 27067515df5831fb11a1ea7b1663824db89c4bef .
flif --verbose --help lists
-W, --no-subtract-green disable YCoCg and SubtractGreen transform; use GRB
it looks like flif -W works but flif --no-subtract-green does not.
/home/matthias/vcs/github/FLIF/src/flif: unrecognized option '--no-subtract-green'.
This was added in 27067515df5831fb11a1ea7b1663824db89c4bef .
flif --verbose --help
lists-W, --no-subtract-green disable YCoCg and SubtractGreen transform; use GRB
it looks likeflif -W
works butflif --no-subtract-green
does not./home/matthias/vcs/github/FLIF/src/flif: unrecognized option '--no-subtract-green'
.