giftrans-1.12p0

GIFtrans, a tool for GIF89a transparent option and interlace mode. Usage: giftrans [-t color|-T] [-B color] [-b color] [-g oldcolor=newcolor] [-c comment|-C] [-l|-L|-V] [-o filename] [-e filename] [filename] Convert any GIF file into a GIF89a, with the following changes possible: -t Specify the transparent color -T Index of the transparent color is the background color index -B Specify the transparent color's new value -b Specify the background color -g Change a color in the global color table -c Add a comment -C Remove old comment -l Only list the color table -L Verbose output of GIFs contents -V Verbose output while converting -o Redirect stdout to a file -e Redirect stderr to a file Colors may be specified as index, as rgb.txt entry or in the #rrggbb form. Example: giftrans -t #ffffff original.gif > whitetrans.gif