LibreTube/app/src/main/res/drawable/ic_video.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="@android:color/white"
        android:pathData="M21,3L3,3c-1.11,0 -2,0.89 -2,2v12c0,1.1 0.89,2 2,2h5v2h8v-2h5c1.1,0 1.99,-0.9 1.99,-2L23,5c0,-1.11 -0.9,-2 -2,-2zM21,17L3,17L3,5h18v12zM16,11l-7,4L9,7z" />
</vector>