<style name="AppTheme" parent="Theme.AppCompat.Light.DarkActionBar">
    <!-- Customize your theme here. -->
    <item name="colorPrimary">@color/colorPrimary</item>
    <item name="colorPrimaryDark">@color/colorPrimaryDark</item>
    <item name="colorAccent">@color/colorAccent</item>
    <item name="editTextStyle">@style/EditStyle</item>
    <item name="preferenceTheme">@style/PreferenceThemeOverlay</item>
</style>

<style name="EditStyle" parent="Widget.AppCompat.EditText">
    <item name="android:background">@android:color/holo_blue_dark</item>
    <item name="android:textColor">@android:color/black</item>
    <item name="android:textSize">28sp</item>
    <item name="android:padding">4sp</item>
</style>

<!-- Available style that define in support library which can be overrided -->
<style name="PreferenceThemeOverlay">
    <item name="preferenceScreenStyle">@style/Preference.PreferenceScreen</item>
    <item name="preferenceFragmentCompatStyle">@style/PreferenceFragment</item>
    <item name="preferenceCategoryStyle">@style/Preference.Category</item>
    <item name="preferenceStyle">@style/Preference</item>
    <item name="preferenceInformationStyle">@style/Preference.Information</item>
    <item name="checkBoxPreferenceStyle">@style/Preference.CheckBoxPreference</item>
    <item name="switchPreferenceCompatStyle">@style/Preference.SwitchPreferenceCompat</item>
    <item name="seekBarPreferenceStyle">@style/Preference.SeekBarPreference</item>
    <item name="dialogPreferenceStyle">@style/Preference.DialogPreference</item>
    <item name="editTextPreferenceStyle">@style/Preference.DialogPreference.EditTextPreference</item>
    <item name="preferenceFragmentListStyle">@style/PreferenceFragmentList</item>
    <item name="dropdownPreferenceStyle">@style/Preference.DropDown</item>
</style>