Add colour to your output.

colours.rb

# Usage:
#
#   puts green("I'm green")
#   puts red("I'm red")
#   puts bold("I'm bold")
#

def colour(text, code)
  "#{code}#{text}\e[0m"
end

{
  "bold"      => "1",
  "underline" => "4",
  "blink"     => "5",
  "white"     => "37",
  "green"     => "32",
  "red"       => "31",
  "magenta"   => "35",
  "yellow"    => "33",
  "blue"      => "34",
  "grey"      => "90"
}.each do |name, code|
  define_method(name) do |text|
    colour(text, "\e[#{code}m")
  end
end