Display foreground colors as sent by the shell.

colors.csh

#!/usr/bin/csh
#============================================================================
#
# Shell Console Color Previewer
#
# Prints out all the console colors using the shell ([t]csh).
#
# The color code mappings are based on these definitions:
#
#       0 | reset colors to 37;40
#       1 | bright/bold
#       2 | dimmed
#       4 | underlined
#       7 | reversed
#   30/40 | black
#   31/41 | red
#   32/42 | green
#   33/43 | yellow
#   34/44 | blue
#   35/45 | magenta
#   36/45 | cyan
#   37/47 | white
#
# 30s are foreground colors, 40s are background colors
#
#============================================================================

# Notes:
#   mode 3 had no effect in my console
#   mode 5 is for blinking text, and it should never be used or work
#   mode 6 had no effect in my console
#   multiple modes can be combined (e.g. 2;7 for dimmed, reversed text)

# Iterate through each mode.
foreach m ( 0 1 2 4 7 )

    # Iterate through each foreground color.
    foreach f ( 30 31 32 33 34 35 36 37 )

        # Iterate through each background color.
        foreach b ( 40 41 42 43 44 45 46 47 )

            # Print a color swatch.
            printf "\033[$m;$f;${b}m#$m;$f;$b#"

        end

        # Reset color before the newline or it looks bad.
        printf "\033[0m\n"

    end

    # Reset color before next mode.
    printf "\033[0m"

end