<?xml version="1.0" encoding="utf-8"?>
<resources>
    <color name="message_list_item_footer_background">#eeeeee</color>

    <color name="colorPrimary">#DB4437</color>
    <color name="colorPrimaryDark">#B93221</color>
    <color name="colorAccent">#4285F4</color>

    <color name="light_black">#444</color>
</resources>

<?xml version="1.0" encoding="utf-8"?>
<resources>
    <color name="message_list_item_footer_background">#eeeeee</color>

    <color name="colorPrimary">#607D8B</color>
    <color name="colorPrimaryDark">#455A64</color>
    <color name="colorAccent">#607D8B</color>

    <color name="light_black">#444</color>
</resources>

Change color theme to Blue Grey
Change color theme to Blue Grey
