title: How to change the font size of a preference?
body: <p>I don't know how to change the font size of a few preferences. I have tried <a href="https://stackoverflow.com/questions/5334828/how-can-i-change-font-size-in-preferencescreen">this post</a> but it didn't work. After doing it, my icon did not show up. 
  This is what it looks like now but I think that the title of the Preference is too big.
  Here is what my screen currently looks like:</p>
  
  <p><a href="https://i.stack.imgur.com/BfkG1.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/BfkG1.png" alt="Image of the screen "></a></p>
  
  <p>Here is the code for my <strong>pref_headers.xml</strong> xml file:</p>
  
  <pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt;
  &lt;PreferenceScreen xmlns:android="http://schemas.android.com/apk/res/android"&gt;
      &lt;Preference
          android:key="@string/key_pref_general"
          android:title="@string/label_pref_general"
          android:icon="@drawable/ic_person"/&gt;
  
          &lt;Preference
              android:key="@string/key_pref_categories"
              android:title="@string/label_pref_categories"
              android:icon="@drawable/ic_list"/&gt;
  
          &lt;Preference
              android:key="@string/key_pref_productivity"
              android:title="@string/label_pref_productivity"
              android:icon="@drawable/ic_chart"/&gt;
  
          &lt;Preference
              android:key="@string/key_pref_delete"
              android:title="@string/label_pref_delete"/&gt;
  
  
  &lt;/PreferenceScreen&gt;
  </code></pre>