ic_notif_cast.xml

<?xml version="1.0" encoding="utf-8"?>
<!--
  Cast icon (disconnected state). Material Filled.Cast — same
  shape the in-app modifier row's Cast button uses. Layout-rebuild
  swaps to ic_notif_cast_connected when isCasting transitions.
-->
<vector xmlns:android="http://schemas.android.com/apk/res/android"
    android:width="24dp"
    android:height="24dp"
    android:viewportWidth="24"
    android:viewportHeight="24"
    android:tint="@android:color/white">
    <path
        android:fillColor="#FFFFFFFF"
        android:pathData="M21,3L3,3c-1.1,0 -2,0.9 -2,2v3h2L3,5h18v14h-7v2h7c1.1,0 2,-0.9 2,-2L23,5c0,-1.1 -0.9,-2 -2,-2zM1,18v3h3c0,-1.66 -1.34,-3 -3,-3zm0,-4v2c2.76,0 5,2.24 5,5h2c0,-3.87 -3.13,-7 -7,-7zm0,-4v2c4.97,0 9,4.03 9,9h2c0,-6.08 -4.93,-11 -11,-11z"/>
</vector>