Demo of setting CLI colors in Ruby using ANSI escape codes

colors.rb

# frozen_string_literal: true

# colors.rb

# ANSI color codes for foreground text
COLORS = {
  black: "\e[30m",
  red: "\e[31m",
  green: "\e[32m",
  yellow: "\e[33m",
  blue: "\e[34m",
  magenta: "\e[35m",
  cyan: "\e[36m",
  white: "\e[37m"
}.freeze

# Reset code to clear formatting
RESET = "\e[0m"

# Print "Hello World" in each color
COLORS.each do |color_name, color_code|
  puts "#{color_code}Hello World#{RESET} (#{color_name})"
end