title: Style SnackBar in theme app
body: <p>I need help. How can I change the design of the text in snackbar in styles app?  The change in the code does not interest me. I found the following code. But it is not working for me. Why is that?  My theme is derived from @style/Theme.AppCompat.Light.DarkActionBar". I would be very grateful for the help.</p>
  
  <pre><code>&lt;style name="TextAppearance.Design.Snackbar.Message" parent="android:TextAppearance"&gt;
          &lt;item name="android:textSize"&gt;10sp&lt;/item&gt;
          &lt;item name="android:textColor"&gt;#FEFEFE&lt;/item&gt;
      &lt;/style&gt;
      &lt;style name="TextAppearance.Design.Snackbar.Action" parent="android:TextAppearance"&gt;
          &lt;item name="android:textSize"&gt;16sp&lt;/item&gt;
          &lt;item name="android:textColor"&gt;#FEFEFE&lt;/item&gt;
      &lt;/style&gt;
  </code></pre>