Here is a list of all files with brief descriptions:

color.hpp
config.hpp
consumer.hpp
convert_color_space.hpp
end_info.hpp
error.hpp
ga_pixel.hpp
generator.hpp
gray_pixel.hpp
image.hpp
image_info.hpp
index_pixel.hpp
info.hpp
info_base.hpp
io_base.hpp
packed_pixel.hpp
palette.hpp
pixel_buffer.hpp
pixel_traits.hpp
png.hpp
reader.hpp
require_color_space.hpp
rgb_pixel.hpp
rgba_pixel.hpp
solid_pixel_buffer.hpp
streaming_base.hpp
tRNS.hpp
types.hpp
writer.hpp