title: Using Chartjs 2.7.1—legend doesn't have align configuration options—how to add it?
body: <p>Javascript included below. Usually adding:</p>
  <pre><code>align: 'center',
  </code></pre>
  <p>Would work but 2.7.1 doesn't support it. How do I add it? I'm very new to Javascript so please be as descriptive as possible with any help! Thank you!</p>
  <pre><code>defaults._set('global', {
      legend: {
          display: true,
          position: 'bottom',
          fullWidth: true,
          reverse: false,
          weight: 1000,
  </code></pre>