oh-my-zsh/lib/theme-and-appearance.zsh

# ls colors
autoload -U colors && colors
export LSCOLORS="Gxfxcxdxbxegedabagacad"

# Enable ls colors
if [ "$DISABLE_LS_COLORS" != "true" ]
then
  # Find the option for using colors in ls, depending on the version: GNU or BSD
  if [[ "$(uname -s)" == "NetBSD" ]]; then
    # On NetBSD, test if "gls" (GNU ls) is installed (this one supports colors);
    # otherwise, leave ls as is, because NetBSD's ls doesn't support -G
    gls --color -d . &>/dev/null 2>&1 && alias ls='gls --color=tty'
  elif [[ "$(uname -s)" == "OpenBSD" ]]; then
    # On OpenBSD, "gls" (ls from GNU coreutils) and "colorls" (ls from base,
    # with color and multibyte support) are available from ports.  "colorls"
    # will be installed on purpose and can't be pulled in by installing
    # coreutils, so prefer it to "gls".
    gls --color -d . &>/dev/null 2>&1 && alias ls='gls --color=tty'
    colorls -G -d . &>/dev/null 2>&1 && alias ls='colorls -G'
  else
    # For GNU ls, we use the default ls color theme. They can later be overwritten by themes.
    (( $+commands[dircolors] )) && eval "$(dircolors)"

    ls --color -d . &>/dev/null 2>&1 && alias ls='ls --color=tty' || alias ls='ls -G'
  fi
fi

setopt auto_cd
setopt multios

if [[ x$WINDOW != x ]]
then
    SCREEN_NO="%B$WINDOW%b "
else
    SCREEN_NO=""
fi

# Apply theming defaults
PS1="%n@%m:%~%# "

# git theming default: Variables for theming the git info prompt
ZSH_THEME_GIT_PROMPT_PREFIX="git:("         # Prefix at the very beginning of the prompt, before the branch name
ZSH_THEME_GIT_PROMPT_SUFFIX=")"             # At the very end of the prompt
ZSH_THEME_GIT_PROMPT_DIRTY="*"              # Text to display if the branch is dirty
ZSH_THEME_GIT_PROMPT_CLEAN=""               # Text to display if the branch is clean

# Setup the prompt with pretty colors
setopt prompt_subst