packages/SystemUI/res/drawable/ic_qs_bluetooth_connecting.xml

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<vector xmlns:android="http://schemas.android.com/apk/res/android"
        android:width="64dp"
        android:height="64dp"
        android:viewportWidth="48.0"
        android:viewportHeight="48.0"
        android:tint="?android:attr/colorControlNormal">

    <path
        android:fillColor="#FFFFFFFF"
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</vector>