styles.xml

<resources>

    <!-- Base application theme. -->
    <style name="AppTheme" parent="Theme.AppCompat.Light.NoActionBar">
        <!-- Customize your theme here. -->
        <item name="android:textColor">#000000</item>

        <!-- The primary branding color for the app. By default, this is the color applied to the action bar background. -->
        <item name="colorPrimary">#F5F5F5</item>
        <!-- Dark variant of the primary branding color. By default, this is the color applied to the status bar (via statusBarColor) and navigation bar (via navigationBarColor). -->
        <item name="colorPrimaryDark">#757575</item>
        <!-- Bright complement to the primary branding color. By default, this is the color applied to framework controls (via colorControlActivated). -->
        <item name="colorAccent">#009688</item>
    </style>

    <!-- action bar style -->
    <style name="ThemeOverlay.AppCompat.ActionBar" parent="Base.ThemeOverlay.AppCompat.ActionBar">
        <item name="colorControlNormal">#000000</item>
    </style>
</resources>