LibreTube/app/src/main/res/drawable/ic_grid.xml

<vector xmlns:android="http://schemas.android.com/apk/res/android"
    android:width="24dp"
    android:height="24dp"
    android:tint="?attr/colorControlNormal"
    android:viewportWidth="24"
    android:viewportHeight="24">
    <path
        android:fillColor="#FF000000"
        android:pathData="M5,21Q4.175,21 3.587,20.413Q3,19.825 3,19V5Q3,4.175 3.587,3.587Q4.175,3 5,3H11V21ZM13,21V12H21V19Q21,19.825 20.413,20.413Q19.825,21 19,21ZM13,10V3H19Q19.825,3 20.413,3.587Q21,4.175 21,5V10Z" />
</vector>