MKBLEND 
usage: mkblend <palette> [options]

    Generates a shade table to shade indices from a source palette into
    a destination palette.

        <palette>             Source palette
        -o <shade-table>      Output blend table pixmap
        [-d <dest-palette>]   Destination palette if different from source
        [-r <base>,<size>]    Range in output palette (default = 0,256)
