<option type="enum" id="opt/pnm2ppa-Dither">
  <arg_shortname>
    <en>Dither</en>
  </arg_shortname>
  <arg_longname>
    <en>Dithering Algorithm</en>
  </arg_longname>
  <arg_execution>
    <arg_group>General</arg_group>
    <arg_order>112</arg_order>
    <arg_spot>B</arg_spot>
    <arg_substitution />
    <arg_proto>%s</arg_proto>
  </arg_execution>
  <constraints>
    <constraint sense="true">
      <driver>pnm2ppa</driver>
      <arg_defval>ev/pnm2ppa-Dither-FloydSteinberg</arg_defval>
    </constraint>
  </constraints>
  <enum_vals>
    <enum_val id="ev/pnm2ppa-Dither-FloydSteinberg">
      <ev_longname>
        <en>Floyd Steinberg (higher quality)</en>
      </ev_longname>
      <ev_shortname>
        <en>FloydSteinberg</en>
      </ev_shortname>
      <ev_driverval></ev_driverval>
    </enum_val>
    <enum_val id="ev/pnm2ppa-Dither-Ordered">
      <ev_longname>
        <en>Ordered (faster)</en>
      </ev_longname>
      <ev_shortname>
        <en>Ordered</en>
      </ev_shortname>
      <ev_driverval> --fd</ev_driverval>
    </enum_val>
  </enum_vals>
</option>
