title: Change text color and horizontal color for preference category in android
body: <p>I would like to change the color of my Preference category and also change the default horizontal line to blue. Is this possible?</p>
  
  <p>I tried setting the theme for the preference settings with the following:</p>
  
  <pre><code>&lt;style name="myPreferenceTheme"   parent="@style/AppBaseTheme"&gt;
      &lt;item name="android:textColor"&gt;@color/blue&lt;/item&gt;
  &lt;/style&gt;
  </code></pre>
  
  <p>But I got the following as the output:</p>
  
  <p><img src="https://i.stack.imgur.com/QOHrK.png" alt="enter image description here"></p>
  
  <p>My preference.xml looks like this:</p>
  
  <pre><code>&lt;PreferenceScreen xmlns:android="http://schemas.android.com/apk/res/android" &gt;
  &lt;PreferenceCategory
      android:title="ACCOUNT" &gt;
      &lt;Preference
          android:key="googleAccount"
          android:summary=""
          android:title="Google Account" &gt;
      &lt;/Preference&gt;
      &lt;Preference
          android:key="signoutmenu"
          android:summary=""
          android:title="Sign out" &gt;
      &lt;/Preference&gt;
  &lt;/PreferenceScreen&gt;
  </code></pre>
  
  <p>Can somebody help me fix this issue like show in the screenshot above?</p>
  
  <p>Thanks!</p>