NewPipe-app-android/app/src/main/res/drawable/ic_playlist_add_check.xml

<vector xmlns:android="http://schemas.android.com/apk/res/android"
    android:width="24dp"
    android:height="24dp"
    android:tint="@color/defaultIconTint"
    android:viewportWidth="24"
    android:viewportHeight="24">
    <path
        android:fillColor="#FF000000"
        android:pathData="M3,10h11v2h-11z" />
    <path
        android:fillColor="#FF000000"
        android:pathData="M3,6h11v2h-11z" />
    <path
        android:fillColor="#FF000000"
        android:pathData="M3,14h7v2h-7z" />
    <path
        android:fillColor="#FF000000"
        android:pathData="M20.59,11.93l-4.25,4.24l-2.12,-2.12l-1.41,1.41l3.53,3.54l5.66,-5.66z" />
</vector>