LILO-Splash-Screen Script-Fu is a script for the GIMP which helps you
create fancy splash screens for use with LILO (and the boot-logo
patch). It converts an RGB image to an indexed one, selecting
appropriate colors for the image and a special region of interest (the
current selection) where the boot menu shall reside. This is done by
first duplicating the selection and its inversion, converting both to
indexed images, then adding a modified color palette (ADD/SUB)
required for the menu bar, and finally recombining all palette colors
into a single 256 color palette.