google-material-design-icons/android/maps/train/materialiconsround/black/res/drawable/round_train_20.xml

<vector xmlns:android="http://schemas.android.com/apk/res/android"
    android:width="20dp"
    android:height="20dp"
    android:viewportWidth="20"
    android:viewportHeight="20"
    android:tint="?attr/colorControlNormal">
  <path
      android:fillColor="@android:color/white"
      android:pathData="M10,2C7,2 4,2.38 4,5v7.5c0,1.5 1.11,2.73 2.55,2.95l-0.26,0.26C5.81,16.19 6.14,17 6.81,17h0c0.2,0 0.39,-0.08 0.53,-0.22l1.28,-1.28h2.75l1.28,1.28C12.8,16.92 12.99,17 13.19,17h0c0.67,0 1,-0.81 0.53,-1.28l-0.26,-0.26C14.89,15.23 16,14 16,12.5V5C16,2.38 13.32,2 10,2zM6.5,12c0,-0.55 0.45,-1 1,-1s1,0.45 1,1s-0.45,1 -1,1S6.5,12.55 6.5,12zM5.5,9V6h3.75v3H5.5zM12.5,13c-0.55,0 -1,-0.45 -1,-1s0.45,-1 1,-1s1,0.45 1,1S13.05,13 12.5,13zM14.5,9h-3.75V6h3.75V9z"/>
</vector>