android/app/src/main/res/values/colors.xml

<?xml version="1.0" encoding="utf-8"?>
<resources>
    <color name="primary">#009688</color>
    <color name="primaryDark">#00796B</color>
    <color name="textPrimary">#FFFFFF</color>
    <color name="windowBackground">#455A64</color>
    <color name="buttonNormal">#E0F2F1</color>
    <color name="accent">#FF9800</color>
    <color name="itemBackground">#004D40</color>
</resources>