[ -n "$cu" ] && echo -en "$tmux_prefix\033]12;$cu\007"
[ -n "$fg" ] && echo -en "$tmux_prefix\033]10;$fg\007"
[ -n "$mo" ] && echo -en "$tmux_prefix\033]13;$mo\007"
[ -n "$cu" ] && echo -en "$tmux_prefix\033]12;$cu\007"
[ -n "$fg" ] && echo -en "$tmux_prefix\033]10;$fg\007"
[ -n "$mo" ] && echo -en "$tmux_prefix\033]13;$mo\007"