device/drawable-anydpi-v21/ic_signal_wifi_3_bar_black_24dp.xml

<vector xmlns:android="http://schemas.android.com/apk/res/android"
        android:width="24dp"
        android:height="24dp"
        android:viewportWidth="24.0"
        android:viewportHeight="24.0">
    <path
        android:fillColor="#FF000000"
        android:pathData="M12.01,21.49L23.64,7c-0.45,-0.34 -4.93,-4 -11.64,-4C5.28,3 0.81,6.66 0.36,7l11.63,14.49 0.01,0.01 0.01,-0.01z"
        android:fillAlpha=".3"/>
    <path
        android:fillColor="#FF000000"
        android:pathData="M3.53,10.95l8.46,10.54 0.01,0.01 0.01,-0.01 8.46,-10.54C20.04,10.62 16.81,8 12,8c-4.81,0 -8.04,2.62 -8.47,2.95z"/>
</vector>