title: How can I use Ruby to colorize the text output to a terminal?
body: <p>Using Ruby, how can I perform background and foreground text colorization for output in the terminal?</p>
  <p>I remember, when programming Pascal we all used to write our own <code>textcolor(…)</code> procedures to make our small educational programs look more pretty and presentational.</p>
  <p>How would I go about coding an equivalent of that in Ruby?  Is there any built-in support in the core library that lends itself to this?  If not, what would be an idiomatic way to add it?</p>