Step 1) In your .bashrc (you can use something like vim ~/.bashrc
to get there), change the following:
if [ "$colo_-prompt" = yes ]; then
PS1='${debian_chroot:+($debian_chroot)}\[\033[0;37m\]\u\[\033[00m\]:\[\033[01;96m\]\w\[\033[00m\]\$ '
else