Preview all of the Rainbow gem's supported colors

rainbow_colors.rb

#!/usr/bin/env ruby
# frozen_string_literal: true

require "rainbow"

ansi_colors = %w[black red green yellow blue magenta cyan white]
x11_colors = %w[aliceblue antiquewhite aqua aquamarine azure beige bisque
                blanchedalmond blueviolet brown burlywood cadetblue
                chartreuse chocolate coral cornflower cornsilk crimson
                darkblue darkcyan darkgoldenrod darkgray darkgreen darkkhaki
                darkmagenta darkolivegreen darkorange darkorchid darkred
                darksalmon darkseagreen darkslateblue darkslategray
                darkturquoise darkviolet deeppink deepskyblue dimgray
                dodgerblue firebrick floralwhite forestgreen fuchsia gainsboro
                ghostwhite gold goldenrod gray greenyellow honeydew hotpink
                indianred indigo ivory khaki lavender lavenderblush lawngreen
                lemonchiffon lightblue lightcoral lightcyan lightgoldenrod
                lightgray lightgreen lightpink lightsalmon lightseagreen
                lightskyblue lightslategray lightsteelblue lightyellow lime
                limegreen linen maroon mediumaquamarine mediumblue
                mediumorchid mediumpurple mediumseagreen mediumslateblue
                mediumspringgreen mediumturquoise mediumvioletred midnightblue
                mintcream mistyrose moccasin navajowhite navyblue oldlace olive
                olivedrab orange orangered orchid palegoldenrod palegreen
                paleturquoise palevioletred papayawhip peachpuff peru pink plum
                powderblue purple rebeccapurple rosybrown royalblue saddlebrown
                salmon sandybrown seagreen seashell sienna silver skyblue
                slateblue slategray snow springgreen steelblue tan teal thistle
                tomato turquoise violet webgray webgreen webmaroon webpurple
                wheat whitesmoke yellowgreen]

text = "The quick brown fox jumps over the lazy dog."

(ansi_colors + x11_colors).each do |color|
  puts "[#{color}]: #{Rainbow(text).send(color)}\n\n"
end