neat coloured prompt for bash that shows `user@pcname:pwd\n$?>` where $? changes between red and green if it was an error or no

prompt.bashrc

prompt-color() { printf '\\[\e[38;5;%sm\\]%s\\[\e[m\\]' "$1" "$2"; }
PS1="$(printf '%s' \
	'\n' \
	`prompt-color 226 '\u'` \
	'@' \
	`prompt-color 208 '\h'` \
	':' \
	`prompt-color 207 '\w'` \
	'\n' \
	`prompt-color '$(( $?==0 ? 82 : 196 ))' '$?'` \
	`prompt-color 240 '> '` \
)"