<p><pre><code>    let window: PistonWindow = 
        WindowSettings::new(&quot;Hello Piston!&quot;, [640, 480])
        .exit_on_esc(true).build().unwrap();
</code></pre>
That is one of the ugliest, most &quot;accidental complexity&quot; ways of creating a window I have ever seen.<p>I am certainly not going to use that.