Whiptail : Gestion des couleurs

Le code

#!/bin/sh

NEWT_COLORS='
  window=,red
  border=white,red
  textbox=white,red
  button=black,white
' \
whiptail --msgbox "passwords don't match" 0 0

Les couleurs

color0  or black
color1  or red
color2  or green
color3  or brown
color4  or blue
color5  or magenta
color6  or cyan
color7  or lightgray
color8  or gray
color9  or brightred
color10 or brightgreen
color11 or yellow
color12 or brightblue
color13 or brightmagenta
color14 or brightcyan
color15 or white

Les différents éléments modifiables

root                  root fg, bg
border                border fg, bg
window                window fg, bg
shadow                shadow fg, bg
title                 title fg, bg
button                button fg, bg
actbutton             active button fg, bg
checkbox              checkbox fg, bg
actcheckbox           active checkbox fg, bg
entry                 entry box fg, bg
label                 label fg, bg
listbox               listbox fg, bg
actlistbox            active listbox fg, bg
textbox               textbox fg, bg
acttextbox            active textbox fg, bg
helpline              help line
roottext              root text
emptyscale            scale full
fullscale             scale empty
disentry              disabled entry fg, bg
compactbutton         compact button fg, bg
actsellistbox         active & sel listbox
sellistbox            selected listbox

Liens

https://askubuntu.com/questions/776831/whiptail-change-background-color-dynamically-from-magenta