gistfile1.txt

git_color() {
    color=$White
    git tag 2> /dev/null > /dev/null && color=IRed
    git diff --exit-code 2> /dev/null > /dev/null && color=IGreen
    [[ "$(git_added_count)" != "0" ]] && color=IYellow
    git_untracked || color=U$color
    echo ${!color}
}

gistfile2.txt

# Underline High Intensity
UIBlack='\e[4;90m'       # Black
UIRed='\e[4;91m'         # Red
UIGreen='\e[4;92m'       # Green
UIYellow='\e[4;93m'      # Yellow
UIBlue='\e[4;94m'        # Blue
UIPurple='\e[4;95m'      # Purple
UICyan='\e[4;96m'        # Cyan
UIWhite='\e[4;97m'       # White