.bashrc prompt colorization

.bashrc

if [[ "$TERM" == "xterm-256color" ]] ; then

# This snippet can replace the existing block in your .bashrc and provides the following benefits:
#    1. It checksums your host's FQDN, then assigns a color so your prompt for it. This means every host has a (semi) unique color
#    2. it checksums your username, then does the same thing.
# This means your username is always the same color, and your hostname is consistent-yet-different.
# colors range between 21 and 231 on this page: https://robotmoon.com/256-colors/#shell-prompt
# enjoy! - morgajel
                num=$((0x$(echo `hostname -f` | md5sum | cut -f 1 -d " " | cut -c 1-4)))
                color=$((num%210+21))
                num=$((0x$(echo $LOGNAME | md5sum | cut -f 1 -d " " | cut -c 1-4)))
                ucolor=$((num%210+21))
                usercolor='\[$(tput setaf $ucolor)\]\u\[$(tput sgr0)\]'
                atcolor='\[$(tput setaf 245)\]@\[$(tput sgr0)\]'
                hostcolor='\[$(tput setaf $color)\]\h\[$(tput sgr0)\]'
                coloncolor='\[$(tput setaf 245)\]:\[$(tput sgr0)\]'
                pathcolor='\[$(tput setaf 12)\]\w\[$(tput sgr0)\]'
                endcolor='\[$(tput setaf 245)\]\$\[$(tput sgr0)\] '
    PS1='${debian_chroot:+($debian_chroot)}'$usercolor$atcolor$hostcolor$coloncolor$pathcolor$endcolor

elif [ "$color_prompt" = yes ]; then
    PS1='${debian_chroot:+($debian_chroot)}\[\033[01;32m\]\u@\h\[\033[00m\]:\[\033[01;34m\]\w\[\033[00m\]\$ '
else
    PS1='${debian_chroot:+($debian_chroot)}\u@\h:\w\$ '
fi