<layer-list xmlns:android="http://schemas.android.com/apk/res/android">

    <!-- background track -->
    <item android:id="@android:id/background">

        <shape>

            <corners android:radius="8dp"/>

            <solid android:color="#111827"/>

        </shape>

    </item>

    <!-- progress -->
    <item android:id="@android:id/progress">

        <shape>

            <corners android:radius="8dp"/>

            <gradient
                android:startColor="#1e6bff"
                android:endColor="#4da3ff"
                android:angle="0"/>

        </shape>

    </item>

</layer-list>
