Signal-Android/app/src/main/res/drawable/ic_switch_camera_28.xml

<vector xmlns:android="http://schemas.android.com/apk/res/android"
    android:width="28dp"
    android:height="28dp"
    android:viewportWidth="28"
    android:viewportHeight="28">
  <path
      android:fillColor="@color/core_white"
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</vector>