title: Angular mat-tab-nav-bar how can I change the color of the text?
body: <p>By doing the following I can change the colour of the text of the tab :</p>
  <pre><code>.mat-tab-link {
    color: black;
  }
  </code></pre>
  <p>But the text is very slightly transparent witch gives it a grey appearance ( on a white background ) when the tab is not selected. How can I set the transparency / CSS for non selected tabs ?</p>