app/src/main/res/drawable/back_pack.xml
<vector
xmlns:android="http://schemas.android.com/apk/res/android"
android:height="28dp"
android:width="28dp"
android:tint="@android:color/white"
android:viewportHeight="24"
android:viewportWidth="24">
<path
android:fillColor="@android:color/white"
android:pathData="M20,8v12c0,1.1 -0.9,2 -2,2H6c-1.1,0 -2,-0.9 -2,-2V8c0,-1.86 1.28,-3.41 3,-3.86V2h3v2h4V2h3v2.14C18.72,4.59 20,6.14 20,8zM6,12v2h10v2h2v-4H6z"/>
</vector>