title: How to override matTreeNodePadding style in Material?
body: <p>There is Material Attribute <code>matTreeNodePadding</code> that sets padding-left for DOM element:</p>
  
  <pre><code>&lt;div matTreeNodePadding&gt;&lt;/div&gt;
  </code></pre>
  
  <p>After rendering this block comes to:</p>
  
  <pre><code>   &lt;div style="padding-left: 40px;"&gt;&lt;/div&gt;
  </code></pre>
  
  <p>How to reduce this padding to 20px?</p>