Android_Appbar_Styling.xml

<style name="ToolbarTheme" parent="@style/ThemeOverlay.AppCompat.Dark.ActionBar">
  <!-- android:textColorPrimary is the color of the title text in the Toolbar  -->
  <item name="android:textColorPrimary">@android:color/holo_blue_light</item>
  <!-- actionMenuTextColor is the color of the text of action (menu) items  -->
  <item name="actionMenuTextColor">@android:color/holo_green_light</item>
  <!-- Tints the input fields like checkboxes and text fields -->
  <item name="colorAccent">@color/cursorAccent</item>
  <!-- Applies to views in their normal state. -->
  <item name="colorControlNormal">@color/controlNormal</item>
  <!-- Applies to views in their activated state (i.e checked or switches) -->
  <item name="colorControlActivated">@color/controlActivated</item>
  <!-- Applied to framework control highlights (i.e ripples or list selectors) -->
  <item name="colorControlHighlight">@color/controlActivated</item>

  <!-- Enable these below if you want clicking icons to trigger a ripple effect -->
  <!-- 
  <item name="selectableItemBackground">?android:selectableItemBackground</item>
  <item name="selectableItemBackgroundBorderless">?android:selectableItemBackground</item> 
  -->
</style>

<!-- This configures the styles for the title within the Toolbar  -->
<style name="Toolbar.TitleText" parent="TextAppearance.Widget.AppCompat.Toolbar.Title">
    <item name="android:textSize">21sp</item>
    <item name="android:textStyle">italic</item>
</style>