3 ms·

The 256 color palette was the most useful bit for me: not every terminal supports true color, and many terminals allow users to select color themes for the firs

• chasil 5y ago
  Here is a shell script to set and use colors. I added the truecolor functions just now. #!/bin/dash fg () ( printf '\033[38;2;%d;%d;%dm' "${1:-0}" "${2:-0}" "${3:-0}"; ) bg () ( printf '\033[48;2;%d;%d;%dm' "${1:-0}" "${2:-0}" "${3:-0}"; ) fg256 () ( printf '\033[38;5;%dm' "${1:-0}"; ) bg256 () ( printf '\033[48;5;%dm' "${1:-0}"; ) N='\033[' x=30 for a in Bl R G Y B M C W # Black Red Green Yellow Blue Magenta Cyan White do eval $a='$N'"'"$(( x))"m'" \ b$a='$N'"'"$((60+x))"m'" \ ${a}bg='$N'"'"$((10+x))"m'" \ b${a}bg='$N'"'"$((70+x))"m'" # bX=bright Xbg=background bXbg=brgt bgnd x=$((1+x)) done N=$N'0m' printf "${B}${Gbg}This is blue on a green background.$N\n" fg 255 bg 255 255 255 printf "This is red on a white background.$N\n" x=0 while [ $x -lt 256 ] do y=$((255-x)) fg256 $x bg256 $y printf "%.3d $N" $x [ $(((1+x)%16)) -eq 0 ] && echo '' x=$((1+x)) done echo ''