Some gif comparisons See the gifsicle commands and compare gifs..

colors-bw-dither-halftone-2-2.gif 0198113 bytes

colors-bw-dither-halftone-4-2.gif 0231191 bytes

colors-08.gif 0233877 bytes

colors-bw-dither-squarehalftone.gif 0275275 bytes

colors-bw-dither-halftone-6-2.gif 0288045 bytes

colors-bw-dither-halftone.gif 0288045 bytes

colors-bw-dither-halftone-10-2.gif 0299575 bytes

colors-bw-dither-diagonal.gif 0340599 bytes

colors-08-nomap.gif 0375017 bytes

colors-08-gray.gif 0399311 bytes

colors-16.gif 0452769 bytes

colors-bw-dither.gif 0531469 bytes

colors-128.gif 0634953 bytes

colors-256.gif 0634953 bytes

colors-32.gif 0634953 bytes

colors-64.gif 0634953 bytes

colors-16-nomap.gif 0695101 bytes

colors-16-gray.gif 0793103 bytes

colors-08-gray-dither.gif 0824915 bytes

colors-08-dither.gif 0859539 bytes

colors-32-nomap.gif 1019363 bytes

colors-16-gray-dither.gif 1139391 bytes

colors-32-gray.gif 1270829 bytes

colors-16-dither.gif 1433279 bytes

colors-64-nomap.gif 1475453 bytes

colors-32-gray-dither.gif 1672437 bytes

colors-32-dither.gif 1822639 bytes

colors-64-gray.gif 1838139 bytes

colors-128-nomap.gif 1953747 bytes

colors-64-dither.gif 2026573 bytes

colors-64-gray-dither.gif 2218181 bytes

colors-256-nomap.gif 2371149 bytes