general:
  renew all error messages
  cleanup all apps
  for all: bump file names when files already exists (esp. extresso)
  make sgml documentation for res scripts

icotool:
  support animated icons: see wotsit.org: ANI
  support for small BMPs renamed to ICO?
  do not truncate or overwrite when opening new file.
  add --transparent-color=#xxyyzz
    Use this color for transparent pixels. Normally the color is left as is
    in transparent pixels, but it might be hard/impossible to set color for
    tranparency in some graphics programs. (from Lawrence Kesteloot)

extresso:
  improved error checking?

wrestool:
  do not truncate or overwrite when opening new file (see icotool).
  read files using functions in fileread.c.
  in main, do not check filesize. Add support for '-' as stdin.
  callbacks (do_resource) should be able to fail if returning FALSE.
  write dual level verbosity debug messages!
  count number of resources matched once completed
  better (shorter) extraction filenames (get_destination_name)
  --format option for (raw|res_name|res_id) instead of raw
  --first to extract one resource only (error if none matched)
  count resources --count? error if not found?
  fix language management & naming, for dest filename as well

examples:
  make reslists for XP+SP2