Here is a list of all files with brief descriptions:

docs
include
haio.hpp
haio_cache.hpp
haio_cdn.hpp
haio_cli.hpp
haio_cli_grammar.hpp
haio_codec.hpp
haio_common.hpp
haio_convert.hpp
haio_formats.hpp
haio_iwindow.hpp
haio_object.hpp
haio_palette.hpp
haio_pipe.hpp
haio_pipeline.hpp
haio_registry.hpp
haio_string.hpp
haio_transform.hpp
haio_util.hpp
library
backend
codecs
color
bgr888
rgba8888.cpp
bgra8888
rgba8888.cpp
chr_nes
palette.cpp
etc1
rgba8888.cpp
gray8
rgba8888.cpp
palette
rgba8888.cpp
rgb555
rgba8888.cpp
rgb565
rgba8888.cpp
rgb888
rgba8888.cpp
rgba5551
rgba8888.cpp
rgba8888
bgr888.cpp
bgra8888.cpp
etc1.cpp
rgb555.cpp
rgb565.cpp
rgb888.cpp
rgba5551.cpp
yuv420.cpp
yuv420
rgba8888.cpp
sizes.cpp
container
ansi
encode.cpp
dds
decode.cpp
detect.cpp
encode.cpp
gif
decode.cpp
detect.cpp
jpeg
decode.cpp
detect.cpp
encode.cpp
ktx
decode.cpp
detect.cpp
encode.cpp
ktx2
decode.cpp
detect.cpp
encode.cpp
png
decode.cpp
detect.cpp
encode.cpp
ppm
decode.cpp
detect.cpp
encode.cpp
pvr
decode.cpp
detect.cpp
encode.cpp
rom
decode.cpp
detect.cpp
tga
decode.cpp
detect.cpp
encode.cpp
header.hpp
utf8
encode.cpp
zcis
detect.cpp
encode.cpp
wuffs.cpp
palette
known.cpp
quantise.cpp
common
format
format.cpp
pipeline
convert.cpp
pipeline.cpp
string
string.cpp
utils
bytes.cpp
gpu.cpp
matches.cpp
frontend
cdn
bucket
storage
file.cpp
http.cpp
s3.cpp
zip
archives.cpp
fetch.cpp
reader.cpp
bucket.cpp
bucket.hpp
cache
policy
deduplication.cpp
key.cpp
quota.cpp
storage
file.cpp
memory.cpp
redis.cpp
cache.cpp
cache.hpp
config.cpp
server.cpp
convert
cli.cpp
parser.cpp
pipeline_builder.cpp
source
platform
microslop
instance.cpp
window.cpp
window.hpp
main.cpp