NewPipe/app/src/main/res/drawable/progress_youtube_horizontal_dark.xml

<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
    <item android:id="@android:id/background">
        <shape>
            <solid android:color="@color/dark_ripple_color" />
        </shape>
    </item>
    <item android:id="@android:id/progress">
        <clip>
            <shape>
                <solid android:color="@color/dark_youtube_primary_color" />
            </shape>
        </clip>
    </item>
</layer-list>