# File lib/guard/notifiers/tmux.rb, line 90
      def display_message(type, title, message, options = { })
          message_format = options["#{ type }_message_format".to_sym] || options[:default_message_format] || DEFAULTS[:default_message_format]
          message_color = options["#{ type }_message_color".to_sym] || options[:default_message_color] || DEFAULTS[:default_message_color]
          display_time = options[:timeout] || DEFAULTS[:timeout]
          separator = options[:line_separator] || DEFAULTS[:line_separator]

          color = tmux_color type, options
          formatted_message = message.split("\n").join(separator)
          display_message = message_format % [title, formatted_message]

          system("#{ DEFAULTS[:client] } set display-time #{ display_time * 1000 }")
          system("#{ DEFAULTS[:client] } set message-fg #{ message_color }")
          system("#{ DEFAULTS[:client] } set message-bg #{ color }")
          system("#{ DEFAULTS[:client] } display-message '#{ display_message }'")
      end