title: Title text size of Toolbar
body: <p>I am using Toolbar on which i set title text.but for different screen i have define different title text size using style.
  but the problem is when i run this on phone which screen is <code>mdpi</code> the title text size is OK but for the screen of <code>tablet mdpi</code> the Title is looking too small
  this is my style</p>
  
  <pre><code>&lt;style name="Toolbar.TitleText" parent="TextAppearance.Widget.AppCompat.Toolbar.Title"&gt;
          &lt;item name="android:textSize"&gt;15dp&lt;/item&gt;
          &lt;item name="android:textStyle"&gt;bold&lt;/item&gt;
      &lt;/style&gt;
  </code></pre>
  
  <p>this is toolbar.xml</p>
  
  <pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt;
  &lt;android.support.v7.widget.Toolbar
      xmlns:android="http://schemas.android.com/apk/res/android"
      xmlns:app="http://schemas.android.com/apk/res-auto"
      android:id="@+id/toolbar"
      android:minHeight="?attr/actionBarSize"
      android:background="@color/colorPrimary"
      android:layout_width="match_parent"
      android:layout_height="50dp"
  
      app:titleTextAppearance="@style/Toolbar.TitleText"
      android:subtitleTextAppearance="@style/AppTheme.Toolbar.SubTitle"
      app:popupTheme="@style/ThemeOverlay.AppCompat.Light"
      app:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar"/&gt;
  </code></pre>
  
  <p>i have declared this style in all folder like <code>style.xml(mdpi)</code>,<code>style.xml(hdpi)</code>,<code>style.xml(xhdpi)</code> with diffrenttext size.
  so please help me how to set text size of title so it look good on both phone and tablet</p>